I've been taking 37.5 mg phent for almost 6 months (1st 2 mo. 30mg) I've lost 49 lbs which of coarse I'm exstatic about, but I still have a lot more to go. Phent doesn't seem to be working anymore I don't know what to do. Should I take a brake, change to different med, try supplements, etc? I'm very confused on what to do. And my energy levels are decreasing and my appetite is increasing, HELP! Any advice PLEASE!