I am on 30mg. First 2 days felt fine, one headache and didn't eat much at all. Not on purpose was just busy and forgot. Day 3 I fainted first thing in the morning, think it was from not eating and got out of bed too quickly. So after that I made sure I ate. Since then I have been fine. Some days I feel like it's not working, always feeling hungry. Although I must admit I don't think about chocolate or any other sugar filled foods. The thought of drinking soft drink makes me feel sick. But for about 4 days now I have nausea all day long. Worst is about 730 at night. But I'm kinda over it. I feel like I'm pregnant again. Does this last. I don't know how much longer I can go on with it. I work nights so I feel worst when I'm at work. Have no other side affects. Please help!!