Originally Posted by guitarsnbikes
I have had physical sensations which, for me, are new. There are, of course, a certain amount of aches and pains from the workouts: muscle stiffness and fatigue. But I've also had times when I just had chills when everyone else was feeling fine and that's very unusual for me. I'm usually the one that's too hot.
Guitarsnbikes, I have experienced exactly what you describe here. I'm convinced it's a real thing. I started my weight-loss in earnest in August of 2009. By July of 2010 I was at an 8-week course of training with the National Guard. I'd dropped 115 lbs in 6.5 months, and then dropped another 20 or so over the next several months. The weightloss was so dramatic that my body didn't seem to know how to deal with things like the cold. By the 3rd week of September we spent most of two weeks out in the field, in Pennsylvania, with long hours spent sitting outside in a fighting position in the woods. The temperatures dipped down into the 50s, but it felt like sub-zero to my body. With extra t-shirts layered up, extra uniform parts layered on, my "woobie" (poncho liner, essentially a light quilted blanket) pulled around my shoulders, winter PT uniform parts (no kidding) put on underneat my ACUs, I still was freezing my butt off. I was still freezing my butt off in the sleeping bag at night, and we're only talking about the 50s here! I literally had to borrow an extra summer-weight sleeping bag and put it inside of my sleeping bag just to be warm enough to sleep at night.
I'm convinced it's because I had been so fat for long enough (10-12 years) my body had learned to depend on the insulation to help maintain body temperature. Stripped off most of that insulation, my body freaked out and didn't know how to cope. It was very strange. After four years it's gotten better, but to this day I still think I suffer more from the cold than I should, given I grew up in New England.
Oh well. All in all, if I'm going to have problems with my body, having trouble with cold because I lost so much weight is a good one to have.