My 4month old has diarrhea and cough n cold since Monday. she is on antibiotics and cough syrup prescribed by doc. Her diarrhea or loose motions seems to be a little better now. With the diarrhea it was hard to tell her urine output but since today morning I have noticed that the baby has not peed enough. Should I be concerned about her urine output? What is the normal urine output for 4month old? What should I do in this situation? please help.