After my accident, I sat in that stupid chair in my living room for 3 months, and lost weight. I'm certain a lot of it was muscle mass, but I lost body fat, too. I didn't eat much (which is typical for me), but I was still surprised because I was doing N-O-T-H-I-N-G! They had me on calcium and D supplements, with an extra high dose of D that I took once a week because my D levels were very low. The high-dose D supplement ended about the same time as my reign in the chair did. I started hitting PT hard and returned to work. And was exhausted. ALL THE TIME. Easily explained by still healing, attempting to regain muscle, etc. Then I started gaining weight. I gained 20 pounds in no time flat, and no matter what I did, didn't seem to matter. And now its 10 months later and I'm still way more tired than I should be. So I went back to my doctor, and he re-ran my labs on everything. They just called and my "slightly underfunctioning" thyroid has apparently gone whack-o and its WAY underfunctioning now. He is tripling my thyroid medication. YAY! Maybe that's all it is. I think I am also going to ask to continue on the weekly high-dose D supplements. It is still low, and I am a milk-drinking, non-sunscreen-wearing, outdoorsy working fool... But I feel better knowing there might be a reason why, other that just still incredibly out of shape from the accident.