Very lethargic yelping in pain when jumping down from chair not eaten or drank for 24 hours was treated for colitis before but no diaorheia this time please help

I strongly suggest you take your pet to the vet..

1. the animal is in pain.
2. has not eaten or drank in 24 hours.

There's something wrong..

Seek a vet.

There are too many things that could be wrong for us to diagnose...
It could be an actual injury like a slipped disc in the back or it could be something genetic like hip displaysia, it could even be bloat or just a tummy bug.

Time to go to the vet to find out the cause.