We picked up two new gilts last weekend. Yesterday I noticed one vommiting. She was acting fine at that time, but later I noticed she was a little sluggish and laying around a lot. I did not take her temperature. I gave her some pepto and later some oats, which she nibbled at. She did not have diarrhea and was still drinking water. I did switch the brand of pig feed a couple of days ago, but mixed it in with what she was already eating. Did not notice any more vomitting after giving the pepto. Any ideas?

A lot of times that vomiting is actually hacking or coughing...If you've noticed a change in behavior you should see a vet or administer meds.