I've been tracking my body temperature (both oral and under-arm) for about a week. I don't seem to have consistent up's or downs. I have days where I am 95.3 oral all day, other days I'm 95 when I wake up, 97 after breakfast and back down to 95 an hour later after walking around buying groceries (and carrying them, up-hill, home). I was VLC for a while and found my skin was getting really dry and my energy level was dropping off. I added yams and some potatoes back in and it hasn't slowed my shrinkage (average 1-2" off belly and hips each month). I still occasionally have issues with hypoglycemia, but not relation to eating carbs. Adding yam, potato and some fruit actually helped.
Anyone have experience with this sort of thing?
P.S. - I'm certain I'm sensitive to both casein and gluten. Had a week long experiment where I had some milk and pizza and was not well for about 7-10 days.
Carbohydrate restriction is known to decrease body temperature, so you may still be eating below an optimal level. I noticed that I wasn't at a comfortable body temperature until I was well over 150g a day, though the requirement is related to one's activity level. A selenium deficiency will also greatly decrease T3 and body temperature.
Sounds like you have a thyroid or adrenal issue. If you take your temp in the morning when you wake up and it is low but consistent (within .2 of the day before), it's a thyroid issue, if it's inconsistent (high one day and low the next) it's adrenal related. You can also have both. I would look up Dr. Wilson, lots of good info on his site and charts so you can track your temps.
Last year I noticed I would get ridiculously cold after my runs, and I started taking my temperature. My average temps were 94-95, and after my runs dropped to 92-93. I went straight to the dr. who tested me for hashimotos (positive) and told me I had adrenal issues. Since then I am up to the 97s for the first time in 5 years, thanks to the paleo diet, rest and iodine.
The dry skin and low energy hint at thyroid. Have you had it tested? One of the drs that became well-known for fighting CW in endocrinology wrote about low temp due to low rT3, the same rT3 that people talk about in the leptin sensitivity dicussions.