Thanks for replying in a thread I created a whole back. I have Irritable Bowel Syndrome believed to be caused by poor diet. My specialist doctor couldn't figure out what I had, since all test (colonoscopy, ect.) came back normal. I have since got it under control with diet. I am taking no medication. Would I need a special issuance for a second class medical? It's my first time applying. And is Align (probiotic) ok? Does FAA say anything about IBS?