It is difficult to know exactly what is happening to change your son's behaviour in this way. He had a cold or more likely the flu recently and this may account for his loss of appetite. Even if his nose is slightly blocked this could be the main reason for his present lack of appetite and change in sleeping habits. Keep his nose clear by using saline nose drops or spray twice daily and give him a probiotic to boost his immunity. It will help to add Scotts Emulsion daily as well.
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