@keltothemoon Good that you told your girlfriend, and that she was so understanding. You may indeed find your parents are understanding as well. Don't be surprised if you get responses like "Why didn't you tell us? How long has this been going on? Oh, son, we are disappointed you waited until now to say something." Don't feel guilty for waiting to say something. Feel victorious that you are stepping in the right direction to address your feelings and concerns. Your parents and girlfriend sound like caring people and want what is best for you. you will have a more positive experience in upcoming college life if you get the professional support now. It may be you have been appearing to be well-adjusted, from others' view. That is called "masking", and it is a survival technique that many of us who have issues use daily.
Ginger