Hamster Cheek Stuffing Question?

I've owned Hamsters before and I know that they can fit large amounts of food in their cheeks, but a recently bought Hamster has his cheeks stuffed to their maximum holding capability constantly and I have only ever seen him with fully stuffed cheeks, I've never seen him empty them. It also seems as if he's eating some of the food because I haven't found a bunker of food in his cage, so he always has his reserve in his mouth. Is it normal that he would always have maximum stuffed cheeks, or could they be impacted and should I take him to the vet?