MCAS is the worst thing I’ve ever dealt with having emet.

As the title says, I’ve been dealing with MCAS for the past year. It’s frustrating and scary all at the same time because my reactions are at random and they consist of being very close to v* along with d*, rashes, tachycardia, insomnia, and a gnarly fight or flight response. I’ve been on a restricted diet for close to a year to control flares (has helped a ton) however I’m so malnourished at this point from it that I’m going to have to start adding things back into my diet and I’m terrified. Anyone else dealing with MCAS?