Hi,

Sounds like it could be a respritory infection or pneumonia.
I would get him to a herp vet ASAP.

Perhaps the move to the new enclosure, and given winter months, did he get chilled?

Although Uros like it cool at night, a sudden change could cause problems.

My Uro recently recovered from such a situation.
A listen to his lungs confirmed pneumonia. Herps can hide illness very well. Had I not been watching him while he choked, I might not have noticed.

The situation was resolved with a series of antibiotic injections.

Good luck!

- Tony