I made the mistake at MEPS of telling them that I was diagnosed with ADD in elementary school. It became a problem when I went to NOMI for my flight physical, but in the end, because of the fact that I had not taken it during all of college and I had a good GPA, the flight surgeon finally signed off on my physical without requiring a psyche exam. I had to get them letters from my former doctor stating that I had not taken anything in more than five years and for that reason, my medical records had been destroyed after such a long time. The flight surgeon needed to see that letter, police record check, highschool transcript, and college transcript. Point being: it won't necessarily disqualify you, but it will be a huge pain in your ass and cause for much additional paperwork. I have been told by many that perhaps I should not have ever mentioned it, as they would never have known otherwise. This would have been nice, but oh well.