Wow--all replies were great and actually spot on. Sorry I haven't replied sooner, I'm actually in Afghanistan and my girlfriend is the one taking care of him right now.

The room temps DID start to drop a little in Sept. so we installed a 150W bulb for his heat to keep the warm side at 90.

I'm going to start feeding him small rats, maybe even mice once every 2 weeks to boost his metabolism and try and ward off another fast. He was eating medium sized rats, once every 2 weeks so I figured nothing was wrong? He's so thick, I wonder if he could even wrap around a mice?

At any rate, a million thanks for the responses, and wouldn't you know it, he ate yesterday.