Dear flatshift,
Congratulations on taking that first step on your road to recovery. I am so glad that you have finally been diagnosed and will be receiving treatment. After all those years of worry and uncertainty now you can get on with your life knowing that there are others who share your experience.
I understand how daunting it is to tell your parents. Let me tell you that I am the mother of 4 children (31, 30,and twins of 26). I am sure your parents will have noticed your erratic behaviour in the past and are worried about you and what is going on. I know that if one of my children came home and told me that he had anxiety and depression I would welcome him with open arms and say "What can I do to help?" I would be delighted that my child had a proper diagnosis and a treatment plan.
It did actually happen to me. While he was at uni one of my boys became withdrawn, isolated, sullen and uncommunicative. I persuaded him to go to a psychologist, and after a number of session he can home and said "Guess what? I have high functioning Asperger's". I was just so delighted to understand what was going on and that he could be helped. All we parents want is the best for our children, and knowing about a dignosis empowers everyone to work together and provide support.
You will have to chose your time to tell your parents - maybe after dinner or on the weekend when you are all sitting tohether in a relaxed atmosphere. Expect lots of questions! It is unfair not to tell your parents, and also counter-productive; how can they support you if they don't know what is going on? They may be uncharted waters, but I am sure you will sail them with your parental support and the support of your friends and family. Good luck!
Ellu