I'm sorry to hear about your experience-- no matter what, if you are in a vulnerable position with someone that you aren't in a relationship with it is always important to remember that condom-- it saves lives! If you feel like you are easily drunk or can get out of hand then you should reconsider how much you actually drink. As far as self-diagnosing, don't go through this. It's more emotionally painful than it is accurate. Just go to your doctors appointment and let him do the diagnosing and correct testing.
Wishing you the best,