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: Nausea
CBD oil for pain relief
I keep reading about people with ME/CFS who are using cannabis oil (CBD oil) for pain relief – with varying degrees of benefit. My GP said that he isn’t allowed to prescribe cannabis oil for pain relief and he wasn’t convinced by the claims that are being made. So is there any evidence that CBD oil can help with pain relief? And given the link to cannabis is it safe to try if you have ME/CFS?
Blood sugars: Hypoglycaemia
I sometimes have acute and short lived episodes involving symptoms that are found with low blood sugar: feeling weak and dizzy, looking pale, sweating, increased pulse rate, blurred vision and confusion.
I’ve read on the internet that one of the symptoms of ME can be episodes of low blood sugar (hypoglycaemia). However, I cannot find hypoglycaemia being listed in any of the official diagnostic criteria for ME/CFS, or in the symptom list in the MEA purple book.
As my brother is diabetic, I’ve been checking my blood sugar levels at these times and found them to be low. My GP said he didn’t know if this could be related to ME/CFS and has arranged for me to see an endocrinologist (hormone specialist) for further assessment.
Please could you clarify if there is a link between ME/CFS and low blood sugar. If so, what is the best form of treatment? I should add that I have a healthy balanced diet with no food restrictions.
Test: Synacthen
A blood test has shown that I have a low level of the hormone cortisol. As a result I am now being referred to hospital to have a synacthen test to assess my adrenal gland function. As this test involves the use of a drug that stimulates steroid production is it likely to cause any problems for someone with ME/CFS? Or could the use of a steroid be a way of treating ME/CFS?
Post-Viral Fatigue Syndrome, Myalgic Encephalomyelitis or Encephalopathy, Chronic Fatigue Syndrome, and Long Covid
Please can you define what PVFS, ME/CFS, and Long Covid mean. I am having difficulty determining if they are the same disease or different. Thank you!
Treatment: Low Dose Steroids
I’m having joint problems at the moment and my consultant wants to inject a steroid into the joint to calm things down. I’m concerned that this could make my ME/CFS worse because I thought that people with ME/CFS should not take steroids. What do you suggest I do?
Symptom: Mild heat stroke
Recently I went to the seaside for the day. It was very hot and I felt it was too much for me, so I went down to the sea to cool off – just paddling in the water (which was surprisingly cold – in fact, downright chilly). It was fine initially but then I started to feel off-balance and then ill, and had to get back to the car quickly (and I had to sit down on the way several times) and then lie down on the back seat of the car. What might have caused such a reaction?
Dysautonomia: Orthostatic Intolerance (OI) and Postural Orthostatic Tachycardia Syndrome (PoTS)
I keep reading about orthostatic intolerance, PoTS and postural hypotension and how they can all be symptoms of ME/CFS. But what do all these medical terms mean? What is going wrong? And are all these symptoms and syndromes related to each other?
Investigations: Magnetic Resonance Imaging (MRI)
I have been referred to a neurologist who has arranged for me to have an MRI scan. This will involve the use of a dye/contrast agent called gadolinium. Is this a safe procedure to have for people with ME/CFS? Can it be used to confirm a diagnosis of ME? And can MRI brain scans cause any adverse reactions?
Addison's Disease
I was interested to see the item on Addison’s disease in the Winter issue of ME Essential as I have a close friend with this rare disease and it obviously has some interesting symptom overlaps with ME/CFS. So is there any evidence that adrenal gland failure, and steroid hormone production, could also be involved in ME/CFS? If so, would it be worth looking at steroids as a possible form of treatment for ME/CFS?
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.
If you have questions about ME/CFS or Long Covid, you can:
- Review the free information in the What is ME/CFS? section of the website, and the free Covid-19 and Long Covid information in the website shop.
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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 an HCP you can sign-up here to receive ME Medical magazine (people with ME/CFS can also nominate their HCP by completing the sign-up form).
