I got my thyroid checked yesterday and it is normal. I talked with my psychiatrist today and she said the weight gain (I initially lost weight after I stopped binging but now I am steadily gaining it back) muscle weakness, extreme fatigue, and coldness and all side effects trazodone which I am taking for sleep. I already have low blood pressure and trazodone lowers your blood pressure among other things to help you sleep. So tonight my psychiatrist and I decided I will go off the trazadone (I was on 100 mg) and take 5 mg of melatonin...keeping my fingers crossed. Thanks for the feed back.