Do I have a problem, or is this normal?

Okay, so quite a few things are happening to me right now, and they are mostly good things. I have to live with my grandparents for a week while my parents are out of state, my Summer Vacation just started, I am enjoying the My Little Pony: Friendship is Magic "Brony" community, I love the love within it, I am getting a lot of insomnia each night while at my grandparent's house, I feel bad for being really hyper at a social gathering and bothering some people, I really want to see my girlfriend, I am worried about what I have to do this summer to be able to use my computer and phone with unlimited access, but I have to wait to find out, and I am on the computer all day. I am feeling like I am going crazy, I can't think straight, and I just chased a ball that was on a string attached to the ceiling around a whole lot. If this is normal to be getting a bit maniac, thats fine, but if it is not, please give suggestions on what I could do. By the way, I have ADHD.