Nice hogs!

Firstly, if you can get a good belly shot of the male, and a nice shot of the eye, I should be able to tell you if anything fantastical is going on with him, or if he is just a lighter color phase. Normal hogs are quite variable in color and pattern so I wouldn't be surprised if he was just a cool looking normal.

As for his eating, what is his behavior like when you offer food to him? I've had them go up to 3 months with no food (not in brumation) before so he is nowhere near being in danger yet.