I don’t have it. But I have a whole host of various allergy issues, and one of the conditions I have is apparently associated with connective tissue disorders, so one of the groups I’m in has a good number of people with EDS (and also mast cell disorders).
I didn’t know mast cells were involved in the destruction of beta cells. I’ve had issues with allergies my entire life, including a severe case of cold urticaria (basically an allergy to cold, that in my case was severe enough to cause anaphylaxis) that developed about a year before I was diagnosed with Type 1 and (thankfully!) disappeared in my early 20s.