I'm not sure about the other two, but formula probably won't help at all. Given thickened formula isn't a cure for chucky babies, it can help *some* but not always. The only thing it's meant to do is weigh more in their tummy to make it less likely to be thrown up. The only thing thickened formula did for Zander when he had reflux was to make him constipated, it didn't stop the vomitting, just made it chunkier *bleurk*