Clear Liquid Vommit - HELP!!!

[reneenay]

Last week the shops ran out of s-26 gold so we bought the normal s-26 thinking there would be no problem. We found that it made him vomit and he reallt didnt like the taste so we bought him the gold straight after. He has been on the gold now for say 5 days but he is now vomiting clear liquid. Sometimes it has white bits of milk in it. He isnt effected by it at all, he is as happy as larry. But I dont know what to do. We have a Drs appointment but until then I am freaking out as the Chemist said it isnt normal. Has anyone had this with their DD DS??

HELP!