I got prescribed phentermine just two days ago. I immediately saw a dramatic reduction in my appetite. Actually, so much so that I had to force myself to eat a cup of cottage cheese for fear I was going to become ill from not eating in days. I just don't think about it throughout the day, and when eating does come up, it just feels like a chore. I have had a slight headache and dry mouth, but not too bad. Increased energy. I feel great all day long. I am having trouble sleeping, however. But I'm hoping it will be worth it. I am 5'8 170 lbs. I have not been able to lose the pregnancy weight no matter how hard i tried after I had my 3rd child 2 years ago. Obviously it's only been a couple of days so no loss yet, but I will update at the end of the 30 days.