About three weeks ago, Chili vomited some undigested food. Four days later she vomited a small amount of stomach acid and bile as she had not eaten yet. Just last night (about another week and a half after the second episode) she vomited more undigested food. Other than these vomiting episodes she is playful, eating and drinking well, and her bowel movements are normal. I bought her some sensitive stomach food after her second vomiting episode. When I hold her it feels like she regurgitates sometimes because I feel her stomach muscle contract one time, then she swallows after that. I don't really know what is going on at this point. I think she may have a nervous stomach, but I've tried all sorts of things to help calm her nerves. I'm not really sure what I should do to help her. Any suggestions?