[de4life]

It's not your fault, so don't feel guilty. Hamsters are generally fairly robust creatures but can deteriorate very quickly when caught out by illness.

All you can do is keep an eye on him and ensure he's comfortable and clean, then take him to the vet as soon as possible. Eating and drinking is a good sign, the most important thing is to watch his hydration levels. You'll know if he's dehydrated because if you pull the skin back from behind the neck it will snap back quickly if he's hydrated, but take longer to go back if he's dehydrated.

I hope Ronnie pulls through okay.