Ok... it all started maybe a year and I half ago (Sep 2010). I'm 5'2 and was 110 at the time, but had horrible self-esteem and felt fat all the time. I started counting calories, and did 800 a day for a little bit but gradually settled to around 1500. By December I'd gotten down to 92-95, depending on the day. Physically, I was completely fine for the longest time. But I started college in August and everything has been TOTALLY out of whack. I've actually gained a little and am more like 97 now. But my periods have been crazy--I had it once in August, and then once in October but it only lasted a day and I haven't had it since. Everytime I get up I feel lightheaded and sometimes I have so little energy I can't even believe it. As far as my habits go, I either eat way too much or not enough. I still eat around 1300 calories on the days when I don't eat a ton, but I also dance 5 days a week. On days when I've eaten way too much, I've either ran 8 miles the next day, purged, or tried to eat less than 1200 calories the next day. Do I have an eating disorder? I've only purged like 10 times-- it's definitely not regular-- and technically I do eat enough, but my body's been freaking out. I also weigh myself twice a day. What's my deal? I really do technically eat plenty but my body's going crazy. Thoughts? Am I just being paranoid?