Let me make sure I understand, for 5 months, he's "eating like a monster" and you think there's something wrong because he's active, right?

I have several that have histories of fasting for 4-9 months, while staying in their favorite hides, that I will offer in a 1-to-1 straight-up trade if you're interested.

Seriously BostonMack, I think he's just doing what's natural, which is to regulate his conditions by crawling to where he's most comfortable. I wouldn't change a thing.

Good luck!