I have a beautiful 1 year old male Pastel. I was sitting at my computer here and all of a sudden I heard this loud coughing/barfing sound. I turned around expecting to see my cat, but it's one of my snakes. He had his mouth open and he was making a loud coughing-like noise though nothing came out. He ate about a week ago so It's nothing food related and he wasn't near his water at the time. I've never heard him (or any of my snakes) do this before.
I looked online and it seems like it might be a small respiratory infection if anything, so I could potentially wait it out to see if things get better on their own without risking his health if that's the case. His temperature is fine, so I'm not sure why he would have developed it.
I'm also very concerned that it might be related somehow to getting the house sprayed for fleas a few weeks ago. I took my snakes and their tanks completely away from the house for the day and the 2 days after they sprayed the carpets, to make sure they were not exposed, and I was given assurances by the pest control company that they've never had problems with sick snakes before, but I'm still worried, and though I really can't afford an unnecessary vet bill (student who recently got laid off from a part time job), I don't want my snake to get even sicker cause I didn't do something about it if it's because of the flea spray.
He seems fine right at this moment, after the coughing he just went into his hiding place for a couple minutes and then came out again to explore the edges of his tank.
My questions are: Does anyone have any idea what it looks like when a snake gets sick from flea spray? Is it safe to wait a few days to see if I see any other symptoms or do I really need to go see a vet right away? Are their other symptoms I should be looking for?
Thanks in advance!

