Baby is coughing every night and mornings!! No cold no fever.

Hello mamas! I need your help my baby has been coughing for about 2 weeks now! She would cough so hard and throw up every morning while drinking the morning milk. So I stopped giving her milk in the morning, instead I would feed food. Which helped so much. But she still coughs at night, I put humidifier in her room, doesn’t seem to help. Her doctor was not concerned with it. She said she is fine. But am not fine am worried.

Have you ladies experienced something like with baby or have any idea what to do?