My 5 month old ds has just started solids. So far we have tried rice cereal and a few veggies. He has no real interest in any of them and a couple of hours after even a 1/4 of a tsp projectile vomits ( I've noticed mainly when I mix rice cereal with anything). I am going to lay off food for the next week then start again. But not sure if his digestive system is still very sensitive or maybe something more serious?? My other 3 ds' all started solids at five months with no problems.