<s>[INST] My 14 week old baby has been fussy for the past couple of days, and barely taking 4 ounces, sometimes only 3! When he usually takes 4-6 oz. He has a minor cough, and I can hear phlegm also.. He even may eat 2 oz, and then eat more one hour later.. what could it be?? [/INST] Hi, welcome to HCM. Can understand your concerns. Your child most probably has lower respiratory tract infection. You should get the child examined by a doctor. </s>