well if the temps and humidity are good...
is the food big enough?
maybe hes burring it? (j/k lol)
speaking of food size..my lil guy may get bigger food here soon himself. but i still have some hoppers in there...so ill try twice a week until they are gone...then maybe try something a tad bigger...
i fed him last night and there werent any "food lumps" when he was done eating...so ...
anyways...just keep an eye on him...perhaps hes getting ready for shed? just take note of how hes acting and what he looks like.
i dont care what people say..snakes have personalities and body language just like anything else...and sometimes facial expressions too, if you pay attention 
good luck~~~
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