My 15month old was up vomiting several times during the night. Today, he seems almost back to himself, hasn't been sick since 6am, playing with toys. He's drank as much if not slightly more than usual but he is tired and sleeping more than normal. Any ideas of foods to offer him? He is choosing to eat biscuits and kiddilicous wafers, had a couple of bits of toast and a couple of baby crisp things. But he is definitely off his food. What sort of things should we offer him?