It's really funny when doctors and medical professionals don't like, meaningfully understand how comorbidity works. "oh, it's very unlikely someone would have all these rare conditions at once"
yeah. maybe that would be fair to say about say, discrete viruses. but about syndromes?
like. the conditions of the human body don't know that they're taxonomically discrete. they don't know that they have different names or lists of symptoms. if a human body has a consistent issue with say, its heart rhythm, or its inflammatory response, or its glandular response, or immune system
the reason that ehlers-danlos syndrome (EDS), mast cell activation syndrome (MCAS), postural tachycardia syndrome (PoTS), IBS (irritable bowel), autism, and even shit like coeliac and PMDD or endometriosis overlap is bc like. these are largely inflammatory issues or issues with the fascia
It's not "what the fuck, how can this person have all these different things wrong with them", bc these are largely like. syndromic definitions of how x bodily issue manifests in different systems, structures, or organs of the body
many of these conditions change in definition over time
and that's bc they're studied and understood more over time where people more meaningfully understand underlying causes and issues, such as through hormone or genetic profiles, or largely like. immune response
it's also how "rare" conditions become understood as more common over time
idk like. not to be on my soap box on this specific issue but this is what happens when you don't teach medical professionals philosophy beyond the basic ethical shit. the reason philosophy is important to medical study is so you don't mistake etymological or philological issues for scientific ones