I've been on Adipex for four days, and since day #2 I've been so sore that I can hardly walk. I have to hobble down the stairs; my quads are tight, and my lower back aches. I take a heavy group fitness class 3 x a week and initially thought my symptoms were due to an unusual workout that my quads and back didn't like. I've been doing this group fitness class, though, for 3 years, and it's unusual for me to ache so badly. I feel like a feeble 80 year old. I'm 59 years old, 185 pounds, hypothyroid. Should I decrease dose from 37.5 in am to 1/2 a pill a day, or just wait it out? Any feedback is appreciated.