There is one flaw in your argument. There's virtually no research done on EDS and even less so on the comparisons with the two diseases. Tell me how me and my friend differ. He has heds, i have CFS.
Tell me how me and my friend differ. He has heds, i have CFS.
He has pots. thats a tick for me.
He has Pem. Tick for me.
He has dysautomnia. Tick for me.
He has thinnish skin. Tick for me.
He scored quite a few of points on the Beighton scale. I have hypermobile toes, thats it. Then again, i have a herniaand other weak connective tissues.
He has orthastic intolerance. Thats a tick fo rme.
He has problems with cold extremes. Tick fo rme.
He has sympathetic activation and mastcell problems.
Over the years, I've heard a number of speculations on this forum similar to yours, that ME/CFS is really just a manifestation of some other known disease.
For example, I heard the opinion that ME/CFS is just an undiscovered form of MCAS. Or that ME/CFS is just an unusual form of hypothyroidism. Or that ME/CFS is just another form of fibromyalgia.
We also know that ME/CFS has similar symptoms, and sometimes some shared pathophysiology, to anemia, hepatitis B, hepatitis C, celiac disease and others.
In all cases, there is some overlap of symptoms and sometimes pathophysiology, but that's not enough to say that ME/CFS is really just a manifestation of some other disease X.
The argument you are presenting as evidence that ME/CFS is the same as hEDS could also be applied to all the other examples I just mentioned. So you can see the problems with this argument.
I agree it is certainly interesting when diseases manifest very similar symptoms, and personally I am always trying to find commonalities between diseases similar to ME/CFS, in case those diseases might throw some light onto the nature of ME/CFS. But that does not mean conflating the diseases.
What we keeo tryingto tell you is that youre thinking inside a very tight box.
It is a precise box, which tries to maintain distinctions. Whereas the argument I hear from you and
@bread. sounds more like a desire to blur the distinction between diseases.
If you blur distinctions in this way, you may end up concluding that ME/CFS is a form of eEDS, which is a form of MCAS, which is a form hypothyroidism, which is a form of fibromyalgia, which are all the same as anemia. I don't think that really helps anyone.
Generally speaking, medical diseases are often similar to other diseases. That's why there is a thing called differential diagnosis, which enables you in most cases to distinguish similar diseases.
You are clearly surprised and interested by the symptomatic similarities between ME/CFS and HEDS. And I agree it is interesting. But it is common in medicine to have different diseases with similar symptoms; and it would be rather foolish to lump all diseases with similar symptoms under the same name.
How does it take into accopunt mitral valve prolapse
Heart valve disease is linked to enterovirus infections of the valves. Enterovirus infection of course is often found in ME/CFS, so the higher prevalence of mitral valve prolapse in ME/CFS conceivably might be explained by this.
Note that viral infection can trigger the immune system to secrete connective tissue-degrading enzymes such as matrix metalloproteinases (MMP) and neutrophil elastase. So this may be how chronic viral infections in the tissues can remodel connective tissues. Bacteria also make their own connective tissue-degrading enzymes, which they utilize to "burn" holes through tissue so that they can spread and infect more areas of the body.
When I first caught my ME/CFS triggering Coxsackie B4 virus, it very quickly started to cause a number of connective tissue changes in my body: sudden onset receding gums, sudden onset skin wrinkling, and sudden onset pelvic girdle laxity. I detail my sudden soft tissue changes in
this post.
In fact, one of the first areas of medical research I started reading about when my virus hit was connective tissue-degrading enzymes like MMPs.
So if there is a connection between hEDS and ME/CFS in terms of shared connective tissue symptoms, it may be these matrix metalloproteinase and neutrophil elastase enzymes which explain it.
But the difference between hEDS and ME/CFS is that the former is hereditary, whereas the latter is acquired usually after an episode of viral infection.