Quote Originally Posted by Vomitore
I've been checking on him all night and I haven't heard him make a sound. Actually, I think I was the one making the whistling sound haha. When it gets dry out my nose runs and of course the snot dries and people get whistlers . You guys think I should still make an appointment or check on him for the next 24-48 hours? I checked him again this morning and he shed last night and looks amazing! But I held him this morning and not a single whistle, pop, crackle and no mucus from his nostril.
That is very likely the source of your whistling sound. Much like the "dried snot" we get ( ) they can get "whistlers" from flakes of old skin during the shed process.