Hello, we have a feral/stray who showed up in December and gave us kittens on May 5. On the 30 I had her spayed and she's been fine until today. She's been coming in the house, which she never did before, but the kittens are inside since the 30. Today she didn't cry at the door to come in and she's not eating. Her wound looks clean and has no redness but she is walking as if she is in pain and she looks very thin. she probably ate food that had de-wormer in it, but a very small amount. There was a male cat hanging around yesterday and my husband thinks they may have fought, but there are no visible wounds. She will not let me near her so I can't catch her, and the vet is closed. Any ideas? I know she's just a stray, but she's our stray and I'd keep her in if she'd stay. She is about 1 yr old and 5 lbs. The vet thought this was her first litter.