hi, im feeding my baby (24 weeks) milk and solids but for the past 3/4 days his appitite has decreased massively, today he has had 4oz s @ 8am, half a jar of apple and cranberry breakfast @ 11am and only 2oz s at 13:30, normally he has between 5/7oz s and a whole jar in the morning and one in the evening, is this normal and should i be worried? thanks for your help