Hi, what typically causes a lowered body temp (from roughly 98.6 to 97.2) in CFS? I don't have any signs of hypothyroidism: no weight gain, no dry skin (quite the opposite), no hair fallout or nail brittleness, and I can get a very acid stomach after big Paleo-style meals of ground beef. I did try 2 or 3 bottles of kelp for iodine, with zero effect - though it's true that kelp is not standardized for iodine content. Also, an informal experiment of about 10 days of Synthroid done two years ago (60-70 mcgs, IIRC) produced zero effect. I also seem to have a hard time cooling down after exercise (and no problems perspiring). Thanks.