Oh no! I'm so sorry to hear that
It's terrible isn't it?
My other one is sick too now.. so I'm trying everything I can to make sure she is going to be ok. Both of them 11months old.
Don't blame yourself hun, I know it's hard but I guess it can't be helped, hamsters never do live very long and there's nothing we can do unfortunately
We'll help each other get through it

xxx