You had no risk from what you've described. It's not even that big of a deal what you did. You should quit beating yourself up over what amounts to a non issue. I think you're totally blowing this way out of proportion and you should just forget about it and move on with your life.
first I'd like to say that testing was a complete waste of time because HIV is not transmitted from the exposure you have described, and never will be. alo, you should already know the answers to your questions since they have been answered by your doctor and not strangers on the Internet. would you believe us over a medical professional? he is clearly correct, you have a mental problem that you need help with, which is obvious since you're here asking these questions, and like you'd been told, you have tested negative and it is conclusive.