23 month old ds was sick last night and then agin in the morning but was keen to eat when everyone else had breakfast so he had a small bowl of rice crispies and some toast and jam, he then seemed really bright as if nothing was wrong with him. Put him to bed and he was very sick when he woke up. He is now a little flat but not totally wiped out. Should I not give him anything to eat now to prevent him being sick? He is at the mo asking for a biscuit!