I recently bought my first Guinea Pig, Zeus. When I first got him he turned out to be sick with a URI so I took him back to (broken link removed) to be treated. The woman there seemed very professional and knew right off the bat what it was. I trusted her and believed that she would do a good job in helping him get better. I just got him back today and I noticed he was making a sound that sort of sounds like the sneezing he was doing before but not exactly. Could it be him getting used to the new environment? Would it be safe for me to wait a couple of days to see if he continues to make that sound before I take him to an actual Vet?