MEDICAL MATTERS
- Medical Matters features questions asked by Members of the ME Association on health-related topics.
- Dr Charles Shepherd and the ME Association's other advisers answer these questions by sharing their expert knowledge.
- Medical Matters is based on the popular ‘Ask the Doctor’ series in ME Essential magazine.
- It is a free resource that supplements the detailed information contained in the full range of literature that can be found in the website shop.

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Questions in the Category: Drugs
Can HIV/AIDS be misdiagnosed as ME/CFS?
I've been diagnosed with ME by my GP after having several months of fatigue, enlarged glands, night sweats and flu-like symptoms. A friend says that HIV/AIDS can cause very similar symptoms in the early stages and that I probably ought to have an HIV blood test – which hasn't been done as far as I know.
Having had several sexual partners, some casual, in the past, I suppose I could be at risk. Unfortunately, this isn't the sort of medical query that I can discuss with my GP because he is a family friend.
Pregabalin (Lyrica)
I have been reading some disturbing newspaper reports about the misuse of pregabalin and it looks as though there may be further restriction on doctors about prescribing this drug. I know that some people with ME/CFS have had major problems with side effects. But there are others like myself who have found pregabalin to be very helpful for pain relief where other drugs have failed. Do you think that my GP will be able to continue prescribing it?
Treatments: Unproven Claims
Looking around the internet I was surprised and disappointed to find a whole range of companies and therapists selling treatments and ‘recovery programmes' that they claim can successfully be used to treat or even cure ME/CFS. Some of these companies are clearly making a lot of money out of desperate people who are willing to try anything that is claimed to help. What can be done to stop these scams?
The 2021 NICE Guideline ME/CFS: Drug Treatments
Comparing some of the recommendations on the use of specific drugs in the new NICE guideline to those in the previous 2007 NICE guideline, I see that melatonin is no longer given a possible recommendation for sleep disturbance in the 2021 guideline and the “do not use” instruction in the 2007 guideline no longer applies to antiviral drugs, fludrocortisone, steroids and thyroxine.
Does this mean that doctors can no longer prescribe melatonin but that they can now prescribe amphetamines, antiviral drugs, steroids, etc for people with ME?
Symptom: Vivid Dreams
Are vivid dreams a recognised symptom of ME? Like most people with ME I have unrefreshing sleep and sometimes wake up in the night. But I’ve recently been waking in the middle of the night with very clear memories of rather bizarre vivid dreams. Fortunately, nothing frightening has happened so far!
Treatments: Prescribed Drugs and Informed Consent
In addition to ME/CFS I have developed both arthritis and osteoporosis and now require drug treatment for these two conditions. I was recently prescribed a new and fairly powerful drug that soon exacerbated a number of my ME/ CFS symptoms. However, I received no warning that this was something that could happen. As a result, the drug had to be stopped and changed to another one that I was able to tolerate. This upset might have been avoided if my doctor had also considered the potential side-effects a bit more carefully, and discussed them with me, before writing the prescription. Why doesn’t this happen?
Symptom: Nerve Pain
Like most people with ME/CFS, pain is a fairly constant and frustrating symptom. But this has become more persistent and severe over the past few months. My GP has prescribed various pain relieving drugs – including low doses of amitriptyline and gabapentin – none of which has had much effect. As well as the pain, which often has a burning quality to it, the areas around it sometimes feel numb and strange. I’m starting to feel quite depressed as a result – is there anything else that could be done to help?
Treatment: Dementia Drugs
Cognitive dysfunction, involving significant and progressive problems with normal mental functioning, is obviously the main symptom of dementia/Alzheimer’s disease. I understand that there are a growing number of drugs that can be used to treat dementia. Could any of these drugs also be used to treat similar aspects of ME/CFS? And have any clinical trials taken place?
Treatment: Rituximab
Like everyone else, I was very disappointed to learn that the big clinical trial that had been carried out in Norway had failed to show any evidence of benefit for rituximab in ME/CFS. However, the doctors involved do not appear to have published a paper outlining what happened and explaining whether this is now the ‘end of the road’ for what appeared to be a very promising treatment that was actually aimed at the underlying disease process. Surely it would be a helpful to know why the trial failed and what lessons might be learnt.
Dr Charles Shepherd
Dr Shepherd has been Trustee and Hon. Medical Adviser to the ME Association for more than 40 years. He is integral to the charity's activities and provides information and support based on his professional knowledge, personal experience as a doctor with ME/CFS, and the understanding gained from helping many thousands of people with the condition. He was a member of the comittee responsible for the 2021 NICE Clinical Guideline and is a recognised expert on ME/CFS in the UK. His knowledge extends to Post-Viral Fatigue Syndromes (PVFS), Myalgic Encephalopathy/Encephalomyelitis (ME), Chronic Fatigue Syndrome (CFS), and Post-Acute Sequelae of SARS-CoV-2 infection (PASC) or Long Covid.

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Medical Matters is based on the popular ‘Ask the Doctor‘ series featured in the highly-regarded member’s magazine, ME Essential, and in the healthcare professional magazine, ME Medical. Both are produced by the ME Association and published as hard-copy magazines every 3 months and sent to members and healthcare professionals by post to home or business addresses.

If you are a Health Care Professional you can sign-up to receive ME Medical magazine (people with ME/CFS can also nominate their HCP by completing the sign-up form).
