That's a bit how I feel too, I wasn't sure about the GP's advice. He mainly said that for a little baby he can become dehydrated very quickly so go to hospital if we are worried. I was already worried when I called him! Miss E - thank you for your wonderful advice. DS was still having wet nappies and I was certain he wasn't dehydrated. DH went and got the hydralyte (powder for kids under 6 months not iceblocks the GP was suggesting) but I didn't give it to him. Poor little one was so exhausted he just crashed and only vomited a small amount of the feed up. He woke up this morning happy and without a high temp but DH said that when he had his midday bottle, he did have another small vomit. It's so horrible knowing he isn't well but thank you ladies for your support and advice.