Hey man, I know how you feel. I get the same way, almost 24 hours a day except for when i'm at school. 17 years old and having to deal with this stuff, not fair, is it? But oh well, we all cope. But still you should go get checked out just to make sure, it will ease your mind a little, I know it did mine, much luck friend.

I think you should talk to your doctor or a counselor about it and if you dont want to be on meds they cant make you take them. As for dealing with an anxiety attack I suggest slow deep breathing, really focus on the air coming in and going out again. Then take a nap or go to bed depending on your situation and the time of day. If you arent in a situation that allows you to sleep try thinking about things that make you happy or calm instead. There are also some herbal things you can try but talk to your doctor about it before you take anything. Hope that helps, I also dont like taking medication unless I absolutley have to.