So my son threw up at daycare on Tuesday, twice I think and once when we got him home. He was fine and ate a pretty much normal dinner, had a normal sleep and was okay for the rest of the week. This morning (Saturday - nighttime now, I'm in Australia) he had a small bit of breakfast and some milk and threw up and then had a huge nap and seemed fine - then tonight after milk and before bed he had the most epic throw up I've ever seen.

I'm so confused, he's had the stomach flu before and that was non stop for several hours until he passed out from exhaustion. This just seems to be totally random, sometimes he'll eat and be fine, others not so much.

Any ideas what it might be? Anyone gone through this?