They are regulated by a thermostat on the warm side and that always stays around 90, but his cool side dropped to about 71 for a few hours until I caught on and fixed it with a higher watt bulb, since then it's stayed around 75, maybe I should go higher... I moved 6 months ago and it's my first time being in a place that gets this cold with my reptile.

As for his food, I get it from a reptile expo that goes on once a month. I would hope that's not the problem.