I am almost 17 years old and I have been wondering if I have Bipolar Disorder for a while, but mostly kept it to myself... Sometimes I will freak out on my parents and my sister for absolutely no reason, and even while I do it I feel bad, but I almost feel like I just can't stop, and I feel horrible when it happens. There are also days where I feel completely on top of the world like nobody can stop me.

Could my ADHD have anything to do with my change in moods at all, or could I have Bipolar Disorder?