Hi Shaky,
That does not sound right. Are you sure that it didnt bring it up before and you just did not see it?
It could be too that there is not nearly enough heat in the tank for the food to be totally undigested.
I would wait about 10 days and try feeding it again. Monitor it closely without disturbing the snake for at least 48 hours.
That all I can think of. I hope that this helps. I would check the heat source.
Jimmy C.