Will this go on forever? I don't know what to do anymore :(?

I've been in love with the same girl all my life. We were in the same school from 5th to 8th grade but when we reached high school, her family moved to another town, thousands of miles away from ours. I was heart broken of course but still, she remained in my mind(and heart). I've never looked to another girl because I love her and only her. I never dated anyone in high school. Now, I'm in college and living in a dorm. I just found out a week ago that her family went back, so that means we're neighbors again. And for the record, she's going to the same college as mine. But she's be taking a different course. Now, she's a member of a sorority. This school we're in is so big. I can hardly see her. I saw her twice this two weeks. I was like, "WOW, I'm still really in love with her" when I saw her. I felt complete since then. I missed her so much you know. I don't know if this is normal but when I'm eating and I'm thinking of her, the food's taste will just disappear, and it's like I'm not eating. Sometimes, I don't eat at all because I'd lose my appetite. I get really excited for school because maybe somehow, I'll see her. I can't even sleep. I sleep for like only 2 hours a day. I don't know, I think I'm going crazy... It's not healthy, for sure. I want it to stop but I can't. I don't know what to do anymore. Should I see a shrink or a doctor? Wat do u guys think about all of this?