Hello everyone!! I just went to the doctor today and got a perscription for phentermine. YAY!!! I cant wait to start losing weight and gaining more confidence in myself.... Im only 19, Im 5'1 and weigh 189 lbs. I started gaining weight the summer before my Junior year in highschool which was about 3 years ago. Im tired of being overweight and im determined to get healthy!! So im extremely excited to be on phentermine!!! I was just wondering.... about how much weight could I expect to lose within a month?? How much did everyone else lose??