I'm sorry you have not been listened to or believed by doctors,
@lelelemonade. Many of us here share your experience, including me. I'm not sure it's solely down to misogyny, since many of the men among us have suffered similarly, and many of the clinicians that treat us so badly are female. I think it's a wider problem than just how men treat women, though that is clearly part of it, and for some of us may be particularly relevant.
The specific issue this thread is about relates to the situation for some pwME in the UK, and possibly other countries, who have been told by some doctors that they have ME/CFS and also have MCAS, POTS and hEDS.
It's quite possible that for some these are valid diagnoses, but
@Jonathan Edwards has explained to us that in his experience these diagnostic categories are not generally recognised as useful labels, partly because the labels attribute biological causes to symptoms that may be incorrect in that patient's case, and partly because some doctors seeing a list of conditions next to the patient's name are likely to assume the patient has a psychosomatic condition and mistreat them accordingly.
This is inexcusable bahaviour by the doctors who should examine the patient and ask questions about symptoms and case history as with every other patient, and provide appropriate treatment for the patient's symptoms. I think what Jonathan is explaining is that while this situation is the case, it may be better for us to protect ourselves from this mistreatment by doctors by avoiding mentioning these other diagnoses and focusing instead on explaining our symptoms and disabilities.
As you rightly say, for many of us, even without being given these extra labels, we are assumed to be psychosomatic cases.