Lately I've noticed how he's been whistling during the inhalation phase of his breathing. I notice it only when I put his nose up against his ear and listen. Breathing out's okay, but each time he breathes in there's a tinny whistle. This has started around three weeks already, and from what I've read in the forums it could be just harmless keratin growing on his nostrils, so I observed him closely instead. He's okay, sleeps all day but becomes active when I pick him up and play with him, and walk around for quite a while in his terrarium after I put him back. He has no watery eyes or excessive drooling, he eats normally, licks all around and is generally still active. He also sneezes every so often, but he doesn't wheeze or anything like that (although when he does breathe in I can see his neck puff and deflate a bit).
It's been three weeks since I spotted this. No change, nothing worsening. Should I take him to the vet now or is it just me being paranoid again?
