I was diagnosed with ADHD at some point when I was in school. I never took any medication - I refused and my parents backed me up because if I do have ADHD, which I will admit is possible, it isn't bad enough that it's ruining my life or anything and until it does I'll just keep things as they are.

Sorry for the terrible run-on sentence

I have no idea about the thyroid thing but I think I'm OK in that department.