My dd(7m) was breast fed until 5 and half months. From day one was a very sicky baby and would often vomit whole feeds(or what looked like). Gained weight well so everyone said dont worry. Stopped from about 4 till 5 and half months. Now is just as bad with puree and milk! Any tips, should i be worried the hv says not. She is gaining well and looks the picture of health. Help!