So one of my ball pythons refused a meal so the following week (the 21st) I fed him a hopper mouse instead of his normal adult mouse. On the 24th he was really active and I thought he might of been hungry so I offered him an adult mouse. He took it and ate it just fine and went back into his hide. So today I went to check on my snakes and I noticed right outside his hide was a partially digested mouse. I'd say the top 3/4 of the mouse looked like feces and the last 1/4 (the mouses back legs and tail) were not digested. The smell wasn't bad, it wasn't really wet it was pretty dry, there was no stain on the newspaper underneath the mouse either.

I read some articles online and I guess there's regurgitation and vomiting for snakes. I thought they were both the same but this clearly looks like vomit.

He's 150 grams. That was the first time he missed a meal since I've had him. He's in a rack system although I'm about to quarantine him to be safe.

The hopper mouse was 10 grams and the adult mouse was 20 grams. Do you think it was maybe just to much food in those 4 days? Only one mouse came out, the hopper must of been fully digested.

Should I give him 10-14 days and attempt to feed a smaller prey item or should I try and get to a vet as soon as possible?

His husbandry is fine so I don't know what's going on with my little guy.

Any help would be great.