Phoenix, thanks for saying something about this to somebody, even if we are disembodied electrons. Thank you for caring that much about yourself, and for trusting us. It's nice to see you here again.
A counselor was mentioned above. Good idea. If you don't know where to start, try the med clinic on campus. If you don't have one, does your town have 311 service, so you could ask about counseling available for little or no money? If not, try your local public library. Don't give up. While you're at the med clinic, ask about a checkup. See if you can likely rule out any medical issues.
Once you find a counselor, open up the floodgates. Don't hold anything back. There are some homophobic counselors, too, and you'll want to flush that out. If you cannot trust your counselor, find one you can trust. You've gotta trust somebody in your life. One successful, open relationship will do you a whole lot of good right now.
I talked to a counselor once, and mentioned my 20th anniversary with my guy, and she beamed at me, wished me a happy anniversary, and congratulated me. I mentioned him to another counselor, and received a very cool response. My medical doctor knows, too, in case that's ever a factor in diagnosis or treatment.
Some of us electrons are available if you ever want to talk to somebody else, too. Pick anybody above whose answers you liked. I'm here, lurking, an embarrassing amount of the time, if you want to PM me.