Dear Cassie, As soon as I read your post I knew what was causing it. I too have lost alot of weight. I gained alot of weight on Paxil my nurse took me off it and put me on Zoloft, I had gained 75 pounds in a year!!! I lost 65 of it rather quickly, I felt terrible, my hair was coming out, I was dizzy, panicking non-stop etc....I was literally starving myself, too much coffee, cigs, I have NOT had a panic attack in 7 days just by eating more and cutting WAY back on caffiene, my sister-in-law in Ohio had the same problem you did when she lost weight, hair and eyebrows falling out, its the loss of weight, I found out the hard way starving can effect your health, physically, emotionally and mental. I agree with antipanic, losing weight too fast is not good, I have been "thin and sick" and I would rather be "chubby and healthy" eat for health now and not for weight loss, just maintain your weight, eat some carbs. My sister-in-law's Doc told her it was a vitamin defiency from the weight loss, scary but not serious. I am sending prayers, please eat good and don't worry. God bless, Debbie.