I dont think shes burping right. Some spit up after eating is just nilk and stuff, but if not burped right- it sits there a bit, then comes back up and smells all raunchy lol. If she is not being burped properly after *every* feeding then she can become irritated, gassy, cranky and be sptting up. I dont think she is sick, but call your doc and ask the nurse to confirm.