Hi Bullknox, I'm so sorry to hear what happened to you. That's awful. I know there must be a lot of pressure on you, being in the engineering program at a prestigious school. (My son is heading to college in August and is majoring in engineering.) People here have given you great advice. Use the resources at your school, that's what they're there for. Plenty of college students have alcohol problems --- nothing you can say will shock the doctors. And by law, they must protect your privacy, so don't worry about that.
Are you on good terms with your parents? As a mom myself, I would want to know if my son were going through what you are so I could help him.
I hope you get the help you need. Please post back here and let us know how you're doing.