Sorry these tests bring up past triggers and you're worried about the results. Maybe you can tell technician beforehand you have past triggers without going into too much detail. Most of us dislike these tests and it is a bit uncomfortable holding all that water. Even though I don't have those triggers, it helped me when I think this is just a routine medical procedure for the medical people. Doing tests down there or looking at your throat is pretty well boring routine for them. These tests will make sure you're healthy and good for you in the long run.

Do what helps you normally. I hope the tests come back normal and everything goes smoothly.