Still RI or paranoia

[hungba]

One of my ball pythons had RI symptoms. I was changing the paper and water, and noticed that there was the whole shed and a poop in the water dish, which I suspect he drank from. He was gagging, stuck his head up directly to the sky, and had bubbles from the mouth.

I immediately quarantined him. Within like an hour he had no more gagging or bubbles in the mouth. I made vet appointment.

By the time he was at the vet the next day, there were none of the previous symptoms. Vet said he could not find anything wrong, but just in case he missed anything, prescribed a broad spectrum antibiotics for 2 weeks. This is what the vet said, not me, so dont yell at me if its wrong. He said if he continues to be normal I don't need to go back.

During this time, the snake continued to NOT have any of the previous symptoms. For all intents and purposes, he looks like a healthy snake, strong and crawling about, head in normal position, no wheezing no clicks, very alert, syring muscle tone etc.

However, 1) I tried to feed him and he did not eat and is scared of me. This may be because he is sick or because he is in a new environment and did not like me inspecting his mouth or giving antibiotics, I don't know. I have thus far only tried to feed him once since 2) I noticed that he does not hardly ever flick his tongue. In the rare instances I see a tongue flick it is only the tip of the tongue, even when cruising. I do see him flick his full tongue immediately after I open his mouth to check for bubbles, in which case he flicks it out fully for about 30 seconds the returns to not flicking. The tips look normal and not stuck together. 3) When I check for bubbles in mouth, I first open his mouth and there are no bubbles, looks completely normal. But if I look longer and he struggles, there will be some liquid coming out from the THROAT, and some bubbles. It's like I open his mouth and look inside, and it looks clear, but his mouth is propped open by a q tip sideways. He struggles, and I see saliva coming out, from the THROAT, not the glottis, with some bubbles form.

So, when you check a snake mouth by opening it, if it is sick, should it have bubbles all the time? What if there are no bubbles but after it struggles bubbles start appearing?