[SimonandSyril]

I'm so happy this hamster has been moved into such great hands. It is a great idea to have a vet trip as some hamsters are very good at hiding symptoms.You got really lucky that this hamster isn't absolutely terrified of everything taking in the fact that he had never been held or had any attention. Make sure you keep an eye out for heavy breathing and sneezing because that is a main indecation of lung problems.
Hope your hamster keeps doing as well as he seems to be doing right now.