I recently acquired an adult carpet python roughly a week and a half ago. On pick up there didn't really seem to be anything too out of the ordinary. The skin was a little loose, but not so that the snake felt particularly thin or dehydrated. I also noticed that the throat looked slightly swollen. It was hardly noticeable, however, and when I pressed on the swelling it felt soft. I voiced my concerns to the seller about this and they said they didn't notice anything. I thought perhaps I was seeing things and being paranoid so I took the snake home. Anyway as the days went by I noticed that the snake tended to hiss and huff a lot when I interacted with it. I put it down to it simply being a grumpy individual. It also showed no interest in any food I offered. Again, I put it down to nothing unusual. It might have been still settling in, or maybe it had no appetite due to the colder weather. Then not long after I had to remove the snake from the enclosure for a cleanup and I could have sworn as it was exhaling I felt its throat vibrating. This made me stop dead. None of my other snakes have done this before. I listened closely to the snake breathing and I was certain I could hear a faint wheezing and clicking. Next day I saw bubbles coming from its mouth. Its throat was puffing like a frog. I observed the snake for a while and more bubbles were coming from its mouth, and every so often it would yawn. I then opened its mouth and inside was a lot of bubbly saliva. Am I right to assume that this may be respiratory infection? Or at the very least something does not seem right here. How long does it take for RI to set in?