I am totally baffled by this and am hoping anyone has experienced something similar or can shed some light on possible causes. The past two days in a row, L will be running around playing and acting totally fine when he suddenly stops, throws up a bit, and then runs off again like he's perfectly fine. It's the weirdest thing and I can't figure out what could be causing it or if I should be concerned. He'll be 2 in May and the only time he has ever vomited before was on Thanksgiving when he had way too much to eat, which has not been the case either of these times. He's had a bit of a cold since last weekend, but seems to be on the upswing and almost over it. Both times it happened between lunch and dinner, but his lunch was totally different both days so it doesn't seem like a particular food is the cause either.