My male leopard gecko who I got at 6 yrs old (have had him about 6 months now), was previously kept on sand substrate by his old owners. He's been up until the past couple of months or so. Recently his appetite has reduced but he is still pooping. In the last couple of days I've noticed some new behaviour. Every now and again when he's out and about in his tank, he bends his head into his body and squeaks. I haven't managed to film it but found a video on YouTube of another gecko doing exactly the same thing. He is completely off his food at the moment and as it stands has not eaten for 7 days. The link to the video I found is below... https://www.reddit.com/r/leopardgeckos/comments/4muely/leopard_gecko_squeaking_does_anyone_know_why/
I have recently taken him to the vet for a check up just to see if he was the correct weight etc as he was quite skinny when I first took him on so needed to gain weight and fatten his tail up. Where I live there was only one vets that had a vet with an interest and experience in reptiles but not qualified as an exotic vet. I did ask about impaction but she didn't seem concerned. With the recent behaviour should I be concerned with impaction? Was thinking of maybe upping his hot spot temperature a couple of degrees to get his digestion going a bit more, and possibly giving him a warm belly bath. Had anyone else seen this behaviour/symptoms and knows what it means?