if it been 5 days you either have a low temp problem or the hatchling for some reason isn't seeking the warm spot to digest it's food. even if it wasn't a regurg and the hatchling pass this, still shows a temp problem as I just stated. don't feed again for another 10 days, just in case it was a regurg. and offer a little bit smaller meal than normal. regurg is serious and steps need to be taken to prevent it from happening again. the digestive track needs to settle down before feeding again. in the mean time, you need to get the temps in that enclosure corrected. don't make the mistake of going from too low to too high with the temps. no matter what enclosure type you are using. the members on hear are great at helping other members with less experience get it right. good luck with the new snake, don