Hello could I have a pp please….. my baby was bf from birth until he started to refuse at 15weeks, so I put him on aptimil breast milk substitute, but then I noticed the milk was going very frothy and after about 2months he was being very sick, so when it came to buying his follow on milk I decided to change to cow and gate….. now he is 7 months old, it for a while he was better, but in the last week he got a bit poorly (viral) with raised temps, he went off his solids, and bottles for a couple days, but he is now rejecting all solids other than finger foods, and he is throwing up his milk from as soon as he finishes, and for about 2-3 hrs after all curdled… my question is…. is this the milk doing it, and should I change his milk again or would that do more harm than good?? He is a canny weight, 19lb 8oz!!! Thank you!!!