I can home from a weekend away from my house. After I was done cleaning the ratties cage I noticed that Merlin wasn't very energetic and had to give him a lift to get to the food bowl. He is after all 2 years old and past his prime. I probably will have to take him to the vet but I wanted to get someone else's opinion.

No trouble responding to a yogie abd he's moving a round more. I'll see tomorrow what he is like before calling that vet. I wonder if rats get frusrated or something one you rearrange their cages after it's been the same way for ages.