Ok, for those without the patience or interest to read the whole thing,
this is the abridged version:

1) My body temperature swings wildly and seems to correlate with eating
(up when eating, down when not eating). Is this other peoples
experience?

2) I've lost 22 lbs in 5 weeks. Is that too fast?

3) I exercise 40 min/day 7 days a week, with 3x a week weight lifting.
Is that too much? Should I be taking a day off to let my body repair
itself?

4) Will low-carbing permanently alter my metabolism so that I will
never be able to modestly up the carbs in the future?

5) Will my insulin resistance go away in the future once I lose the
weight?

Is that short enough?

LQ