Today we woke up to find my hamster spread out on his tummy flat-ish on the bottom of his cage. Last night he had been on his hamster wheel a lot, a healthy about as we could hear him on it. Earlier that day, we had fed him raspberries and blackberries, which I have read are non-toxic to hamsters. When we found him dead he hadn't been flattened, he was just quite flat because he had no air in his lungs. We only got her in May, when she was 3 months old. We have no idea why she died. Can anybody help please?

Sorry I feel really bad for you, though do you have younger children they could have been playing with him and accidentally dropped the poor creature