My daughter is 19. She has had issues with everything since she was 14. We haven’t been able to find many answers so far. I am glad you mentioned the names of some of the tests you have had. I will have to look those up. Knowing what to ask for is helpful. If you make it to an allergist before we do (May) let us know what they say. I have no idea what to expect from the appointment. We are waiting till May because she is away at college. Good luck!