Quote Originally Posted by Crazy4Herps View Post
That is definitely concerning, but it could have to do with shed. Snakes often yawn to loosen up the skin on their face prior to shedding, and this may cause excess saliva to build up, possibly making slight wheezing sounds. Loose skin in the nasal cavity can also make a wheezing sound when they breathe.

Hopefully the mouth opening / sounds won't persist after he sheds, but if so... Could certainly be a respiratory issue.
Agreed. He's definitley in shed if his eyes are blue. Leave him alone until he's done as he's probably pretty uncomfortable right now. Once he's shed, pay attention to his breathing for a few days. If all seems well, then the sounds you heard were due to his shedding process. I'm reasonably sure this is what's going on. We'll wait to hear how he is next week once he's shed and if its persisting, we'll go from there.