@Saillea i used to take chromolyn last year and my experience was a lot like both of you’ve described and eventually I found that it didn’t help much so I stopped. now I’m taking montelukast and i found it to be much better with no side effects. but what helped me the most was these tibetan foot soaks. it sounds counterintuitive to use heat to treat MCAS but i cannot recommend it enough!! i had such bad heat intolerance before using it and now i can fully regulate temperature and i’m doing way better now!!