I came home from work on Friday to find Monty with his eyes closed. I took him outside in the sun for a while to try and perk him up. His eyes were really bulging as well. He slept for over an hour in my hand so I decided to take him to the vets on Saturday morning where we saw a different vet to our normal reptile vet. He was checked over but nothing obvious was found and he was given an injection of Baytril with some oral to carry on with at home.
Over the rest of the Bank Holiday weekend he has stayed the same, although he was a bit more active today. I took him back to see our usual vet today and he had a good look and palpated his stomach. He found a hard 'lump' in Monty's stomach that he wants to investigate so he is having xrays taken in the morning. The vet thought it may be an impaction, but I am really not sure as Monty doesn't eat large enough amounts of anything that could become impacted. There is no substrate in his cage and Monty doesn't eat anything that doesn't move.
So, I am now playing the waiting game again. Will update tomorrow when I have more news.