Hi, my 7 month old baby tried cod for the first time yesterday teatime. It was mixed with sweet potato which she has eaten several times. She was restless in the night and from 3am vomited 4 times. She is happy and bright this morning and has had lots of water and some toast. I m just wondering if it could be some sort of reaction to the fish? If so, how long should I leave it until we try fish again? Thank you.