I concur on getting evaluated, so won’t speak to that portion of your post but one thing you said calls out to me. I can understand drinking as an escape, especially after what you describe. Of you feel your drinking is out of hand, definitely seek help for it. A lot of times drinking makes up for coping mechanisms we don’t have, but at the end of the day it only winds up hurting you.
Aside from looking into getting a proper diagnosis, I would definitely look into help with finding new coping skills that will not cause you harm.
I hope this helps… please keep us posted on your progress.