I have a feral mother cat who gave birth to 5 kittens yesterday. She is less than 1 yr old. She just vomited what looks like it may be blood and mucus. Could this be the result of eating the placenta yesterday? she has been nursing and ate today, but I am worried about upsetting her trying to catch her (she is in my basement - long story) and having her harm the kittens or refuse to nurse after - as it did take some coaxing to get her to nurse initially. Has anyone seen this before - it has been about 36 hours since the first kiten was born.