Try not to handle him for a while (Week or so), then down size the food 1 scale, And then try to feed him in his container/tank. It works for me.
PS... Make sure theres no other snakes in his tank/container during this process...
I think its too early in the year for him to since that. But if there was a nice change in the bariatric pressure, It may have done something. But not for a month.