I'd help you if I could but I think you already know you need to talk to your parents and to your doctor. The only way you can really be helped is for the people helping you to know all the facts.
I'm sorry that you are not able to hang out with you friends like you want to. I imagine that must be hard for you. I'm 45 and I just found out I have elipepsy and it's hard for me.
I'm not sure if my reply helps you cause I really don't know what to say. It just sounded like you needed someone to listen to you.
Also, It might help you if you take Jennifers suggestion and contact some other teens that can understand what you are experiencing. We are all given different trials in our lives and it helps to talk to those in the same situation.
Hang in there. Everything will work out for you.