Hi umm she is about I'd say 8 months old.
All my others I got at the same time and no others are like she is.

Any ideas?
She was in a bin with another female and they got along fine and the other female is HUGE pg but nice body tone so I don't know.

Could it be the babies just took much out of her?
Could she be sick?
Can you tell sick rats? Do they look and act sick?

Thanks rhsm