It's the best guess (and why I was finally getting referred to a rheumatologist, instead of an allergist), but yeah, I don't officially know. But I have, in addition to the vague pile of symptoms like pain, brain fog, exhaustion, heart racing, etc., massive tons of allergies that developed (and keep getting worse) in adulthood, eczema that didn't start until my 40s, vitiligo that didn't start spreading until my 30s ...all of these are your immune system attacking things it doesn't need to. The allergist was just treating them symptomatically, like, here's a cream for that eczema, avoid eating the food allergies, etc. and I had to be the one like, don't you think these are all telling a larger story, including all my other symptoms? And they were like, oh, I don't deal with autoimmune, you have to see a rheumatologist. And I was like ...so can you give me a referral? And they were like, "Oh, yeah. Ok." 😩

Doctors act like if you suggest it yourself, you must be a hypochondriac, but if you don't suggest it yourself, they never will. My primary doc actually did check me for MS because I have an aunt with MS, but when that test came back clear, she didn't look for anything else.