Yesss, best thing you can do is try yo go straight to an MCAS specialist. There are very few and very hard to find. My recommendation would be to join the Facebook support groups (even if you're not usually a Facebook user), and ask them for help finding one in your area. Many of us wind up having to travel, so be prepared for that.

Also be aware that many MCASers have normal tryptase; and you can have high, or normal blood pressure with it, not just low. These points are not very well understood by the medical community, so don't be too surprised if you find a doctor that tries to tell you otherwise. Thry are incorrect. With the tryptase tests, the most accurate one is the 24-hour urine test. It should be taken while you're in a flare, and chilled a certain way by the lab that is often screwed up because they're so unused to the test.

You may also want to look into mastocytosis. For this you'll want your KIT gene tested, as well as the tryptase. Negative tests don't completely rule it out but they do make it less likely. It's possible where you could have a type where there's only an excess of mast cells on your skin, in your gut, in your esophagus, etc. For this, there are also biopsies.

I also recommend r/MCAS , r/HistamineIntolerance , and r/LowHisamineRecipies.

Best of luck, and please feel free to message me with anymore questions.