Has anyone ever taken phentermine? Does it work. I have been trying to lose weight for months. I workout with a trainer and i haven’t lost anything. I’ve actually gained weight. My body measurements have gone down which is great but I need to lose the weight I’m 220 lbs at 5’3. I can’t even stand to look at myself anymore. This is the biggest I have ever been and I feel like no matter what I just can’t get the weight off. Especially in my stomach.