what are the symptoms of dehydration in a child?
['a dry or sticky mouth.', 'few or no tears when crying.', 'eyes that look sunken.', 'in babies, the soft spot (fontanelle) on top of the head looks sunken.', 'peeing less or fewer wet diapers than usual.', 'dry, cool skin.', 'irritability.', 'drowsiness or dizziness.']