Well let me start by saying it is hard to feed a food item that is too big. If you think that it is too big for your snake, and he/she has already eatten it. Then, make sure that your enclosure temps around 90 on the warm side and 80 on the cool side. If the temps. are not right your snake will leave you present for you to cleanup after. Now if the temps are good and you still get that present that we all don't want to see in the morning, then yes the food item was too big. When a snake regur. the food item back up, it is very stressful for the snake. If/when this happens, clean the food item from the enclosure, and leave the snake alone for several days to a week. Then try feeding it a smaller food item. But just remeber that never feed them any item that is bigger than the widest part of their body, and you should be just fine. Hope that this help.