Severe & very severe ME/CFS

What “severe” and “very severe” mean

The UK NICE guideline’s definitions are the most widely used:¹

How many people: the CDC says “up to 1 in 4” people with ME/CFS are home- or bed-bound at some time in their illness, and UK researchers estimate about 25% are severely affected.^2,3,4 Among the 16,730 DecodeME participants who rated their own severity, 12.4% said severe and 0.8% very severe.⁵ In an international survey of 2,138 people, about a quarter were homebound and about 4% bedridden.⁶ Emerge Australia uses the 25% figure for Australia.⁷

What it’s like

People with severe and very severe ME/CFS may experience:^8,9,10

• Post-exertional malaise from tiny amounts of activity, lasting weeks or months. From the UK Biobank’s housebound cohort: “If my daughter cleans her teeth herself, that is it for a week.”³
• Extreme sensitivity to light, sound, touch, movement, smells, chemicals and temperature. Many need a dark, quiet room and little or no social interaction.
• Profound weakness, sometimes unable to sit up, roll over or hold a cup.
• Severe orthostatic intolerance. In 100 severe patients, simply sitting up reduced blood flow to the brain by about 25% (versus 0.4% in healthy people), and a mild 20-degree tilt did the same in every one of 19 severe patients tested.^11,12 Some can only lie flat.
• Severe, near-constant pain, which may be muscular, joint or nerve pain.
• Difficulty eating and swallowing, nausea, early fullness, food intolerances, and a real risk of malnutrition and dehydration.
• Reduced ability to speak or communicate, and difficulty taking in written or spoken information.
• Cognitive difficulties, disturbed sleep, gut problems, and temperature dysregulation.

Whitney Dafoe, who has lived with extremely severe ME/CFS for many years, wrote in 2021: “I haven’t been able to speak for 7 years … I haven’t been touched by another human being without it hurting me in 7 years.” He also warned that when someone becomes too severe to communicate, what looks like anger or rage is usually distress and overload being misread.¹³

Principles of care

Stabilise, don’t activate

An international expert statement on home-based care sums it up: “The goal is not activation, but stabilization.” Reducing stimulation “is not just for comfort; it is a key prerequisite for stabilization”. Physical, cognitive, emotional, orthostatic and sensory stresses all add up and must be weighed against each other, and after every care task the person needs a long enough rest. If the person deteriorates, “the response should not be to escalate measures. Instead, the overall burden should be consistently reduced.”¹⁴

NICE says every interaction with a person with severe or very severe ME/CFS should be risk-assessed in advance “to ensure its benefits will outweigh the risks (for example, worsening their symptoms)”, and that care should be provided by people known to the person wherever possible.⁸

Practical care at home

Drawing on NICE, the Bateman Horne Center, Emerge Australia and the expert statement:^8,10,15,14,3

• Environment: blackout blinds, dim lighting, minimal noise (ear plugs or noise-cancelling headphones), fragrance-free products (no perfume or freshly laundered clothes on visitors), stable cool temperature.
• Timing: schedule visits and care tasks for the person’s better time of day (often after midday), one or two tasks per visit, with rest before and after.
• Handling and positioning: slow, calm movements; warn before touching; be cautious about the pressure of touch and about hypermobile joints. Keep the person lying flat if they have severe orthostatic intolerance; use foam wedges, bolsters and an adjustable bed. Transfers may need a transfer sheet and several people. For transport, the person may need to lie down throughout.
• Personal care: sponge baths, washing one part of the body at a time, on different days if needed.
• Communication: agree a system that costs the least energy: a call button, finger signals, yes/no sounds, written cards. Let the person choose an advocate to speak for them.
• Medications: “start low, go slow”. People with severe ME/CFS are often intolerant of drugs; NICE recommends starting at a lower dose than usual and increasing only if tolerated. Hospital guidance suggests starting at 10–25% of the usual dose, one medicine at a time.^8,16
• Energy management: any changes in activity should be smaller, and any increases much slower, than for less severe illness.⁸ Passive range-of-motion movement only if tolerated; “aggressive or graded rehab is contraindicated”.¹⁰
• Home visits and telehealth: NICE recommends home visits for assessment and care planning, and that services be proactive and flexible. The Bateman Horne Center: “Meet the patient where they are.”^8,10

What to avoid

• Graded exercise, rehabilitation programmes, and CBT as treatment. NICE: do not offer “any therapy based on physical activity or exercise as a cure for ME/CFS”, nor the Lightning Process. CBT may only be offered if the person wants it to help cope, in shorter, less frequent sessions.⁸ “ME/CFS is not deconditioning.”⁹
• Forced mobilisation, forced upright posture, and “encouragement” to do more.
• Misdiagnosis as a psychiatric or eating disorder. This is a recurring, documented harm. NICE warns that people with severe ME/CFS “are at risk of their symptoms being confused with signs of abuse or neglect”, and says declining care, parents acting as advocates and school absence are “not necessarily signs of abuse or neglect”. Any safeguarding or mental-health assessment should involve professionals with ME/CFS expertise.⁸ The Bateman Horne Center: “Signs of profound debility are not evidence of neglect.”¹⁰
• Withholding food support to “motivate” eating. See below.

Nutrition and feeding

Eating and drinking can fail for three reasons: the sheer effort of eating is too much; genuine swallowing difficulty; or gut problems such as gastroparesis, malabsorption or mast cell activation.¹⁷

NICE recommends that people with severe or very severe ME/CFS be referred to a dietitian with a special interest in ME/CFS, monitored for malnutrition and unintentional weight loss, and offered practical help: eating little and often, nourishing drinks, softer textures, eating aids, oral nutrition support and, where needed, tube feeding.⁸ Emerge Australia suggests shakes, bars, soft or liquid foods and non-spill bottles with straws.¹⁵

Other points from clinical guidance: use a mid-upper-arm circumference measurement if weighing is impossible; involve nutrition support and speech pathology teams early; start tube feeds very slowly and watch for refeeding syndrome; consider mast cell problems when gut symptoms are severe; IV fluids may be needed for hydration.^16,9 A 2026 UK survey of patients, carers and clinicians concluded that nutritional problems in ME/CFS are “common, serious and often recognised too late”.¹⁸

Hospital admissions

Hospital environments (noise, light, repeated assessments, being moved, being upright) can cause lasting deterioration in severe ME/CFS. The Royal Devon NHS Trust’s guidance, written after a coroner’s inquest, says that “where possible, hospital admission will be avoided” for that reason.¹⁹ When admission is necessary, preparation matters.

The lessons of the Maeve Boothby O’Neill inquest

Maeve Boothby O’Neill was 27 and had very severe ME/CFS when she died at home in England in October 2021 after three hospital admissions that were unable to treat the consequences of her illness. In 2024 the coroner found she died of natural causes and issued a Prevention of Future Deaths report identifying four concerns: no specialist hospital beds or wards for severe ME anywhere in England; no funding for research into treatment; “extremely limited training for doctors”; and no detailed guidance on how severe ME should be managed at home or whether nutrition guidelines need adapting.^20,21 The inquest heard that an earlier feeding tube “may have been beneficial with hindsight” and that discharge without a 24-hour care package was “unrealistic”.²¹

The UK’s response so far: an NHS review of services, new training modules on severe and very severe ME/CFS, and a delivery plan that will “explore whether a specialised service” for very severe ME/CFS is needed, a decision delayed until 2027.²² A 2026 patient-organisation inquiry titled its report “The more ill you become, the less care you receive.”²³

What NICE says hospitals should do

When planning hospital care, NICE recommends: discussing in advance what to expect; minimising discomfort and PEM during transfer (planning the route, avoiding noisy areas, admitting straight to the ward); using the person’s care plan to arrange reasonable adjustments; providing a single room if possible; and keeping stimuli to a minimum by seeing them one-to-one, using calm movements, not duplicating assessments, being cautious about the pressure of touch, dimming lights, reducing sound, keeping a stable temperature and minimising smells.⁸

Prepare a hospital passport

UK patient organisations publish a free “Supporting people with ME/CFS in hospital” pack with a letter for clinicians, a “my needs and reasonable adjustments” section to fill in beforehand, medication and nutrition summaries, and door signs (“Please keep this room as dark, quiet and odour-free as possible”).¹⁶ It works just as well in an Australian hospital. Key points it covers:

• A named nurse and a side room with the door closed, or the quietest bed
• Allowing a family member or carer to stay, and reducing non-essential visitors
• The need to lie flat, and hypersensitivity to touch and movement during transfers
• Considering a feeding tube early, and pressure-area care if underweight
• Starting medications one at a time at 10–25% of the usual dose; caution with anaesthesia (the Royal College of Anaesthetists has a factsheet)²⁴
• Consent and advocacy arrangements agreed early

The World ME Alliance’s “Safer hospital care for severe ME” adds: listen to patients and carers, allow advocates to be present, safeguard rest, and believe patients.²⁵

Advance care planning in Australia

Emerge Australia recommends an Advance Care Directive stating that ME/CFS is a complex physical illness, recording refusal of graded exercise, CBT-as-treatment and rehabilitation programmes, and noting when your decision-making capacity is best. Each state has its own form. Advance Care Planning Australia’s advisory line is 1300 208 582.²⁶

The situation in Australia

Australia has no specialist service, ward or guideline for severe ME/CFS. The NHMRC confirms there are “no current Australian clinical practice guidelines on ME/CFS”; its new guideline is in development, with a draft expected in 2027 and release by late 2027 or 2028.²⁷ The NHMRC’s own scoping survey heard that people with severe ME/CFS feel “unsupported and profoundly isolated”.²⁸

What exists:

• Emerge Australia: a severe ME/CFS resource page, a guide to caring for someone who is bedbound, advance care planning guidance, and a free nurse-led support line on 1800 865 321 (press 1) that carers can also call.^7,15,29
• ME Group Australia: a charity focused on severe ME, based in Brisbane, which runs Severe ME Day and Severe ME Month webinars each August and commissioned a free Australian resource pack for carers based on the “MOMENT” approach: “If noise hurts, accept this and avoid making it. If perfume triggers symptoms, respect this. If touch is intolerable, work out together what to do when contact is necessary.”^30,31,32
• Home nursing: organisations such as Bolton Clarke and Silverchain provide home nursing and personal care in most states, usually funded through the NDIS, Support at Home (over 65) or private payment. There’s no ME-specific pathway, so brief them using the resources above.
• GPs who do home visits are rare but exist. Ask Emerge Australia, and see Find a doctor.

Overseas, models are emerging: a Norwegian specialised unit for the most severely ill reported that half of 24 patients improved,³³ and a German randomised trial (ACCESS) is testing monthly home-based specialist care for housebound patients.³⁴

For carers

Caring for someone with severe ME/CFS is a full-time, often isolating job. Emerge Australia describes being an advocate as “a key role for the carer”.¹⁵ Supports in Australia:

• Carer Gateway: 1800 422 737, Monday–Friday 8am–5pm, for counselling, peer support, coaching, and tailored support packages including planned respite. For emergency respite, call at any time.³⁵
• Carer Payment (pension-rate income support for full-time carers) and Carer Allowance ($162.60 a fortnight). See Centrelink & the DSP.
• NDIS: for people under 65 with permanent, significant disability. Severe ME/CFS is the strongest case for NDIS access; funded supports can include support workers, personal care, equipment (hoists, adjustable beds, wheelchairs), home modifications and OT. See ME/CFS and the NDIS.
• Support at Home (for people 65 and over) replaced Home Care Packages in November 2025; My Aged Care 1800 200 422. Residential respite of up to 63 days a year is available.^36,37
• Emerge Australia’s carer resources and support groups.²⁹
• Severe ME Day is 8 August, a day to recognise people with severe and very severe ME and those who have died from it.³⁸

See also For family & carers.

Research on severe ME/CFS

People with severe ME/CFS are the least able to take part in research, so they’re under-studied. What exists:

• Stanford’s Severely Ill Patient Study examined 20 severely ill patients in depth: it found low morning cortisol with a flattened daily rhythm and no evidence of active infection with common pathogens, and later whole-genome sequencing found variants enriched in neurological and immune genes.^39,40
• The UK ME/CFS Biobank is the only biobank that systematically collects samples from housebound patients, by home visit.^41,3
• Griffith University found immune-protein differences between housebound and mobile patients.⁴²
• Solve M.E. is funding decentralised, at-home studies so severely ill people can take part, including home participation in the low-dose rapamycin study.⁴³
• A 2021 special issue of the journal Healthcare collected 21 papers on the severely and very severely affected, including the malnutrition series, care guidance and Whitney Dafoe’s account.^9,17,13
• The Dialogues for ME/CFS films (Wellcome-funded) include three short films on severe ME, hospital admission and management, made with clinicians and patients.⁴⁴