I have a mom and 2 kittens (I'm guessing 5-6 weeks old) that were dumped off in a friends driveway. I've brought them in my house in the spare bedroom. They immediately ate and went to sleep. The mom concerns me. She walks slow but doesn't limp and could barely jump on the bed to get comfortable. She's slept since I brought her home 6 hours ago. In fact, she barely lifts her head off the bed when I go I to check on them. Mom is very grateful for being here. She's skin and bones. Do you think she's just exhausted due to the fact her kittens have been trying to nurse and she has no nutrients in her system to feed them beside the fact she was starving, cold and probably has had no sleep for who knows how long? Or could this be something else and maybe I should take her to the vet? I've never had a mom and kittens before. Help