 [ Symptoms ] my mom has bronchitis breathing heavily but… [ Disease ] hi if she has no cough fever then there is no possibilty that she may have mucous mild bronchitis will have no symptoms initially but only some difficulty in breathing may be the starting symptom also weakness and anemia cause breathlessness on exertion get her blood checked too it may also be a start of asthma instead of expectorant use bronchodilators thanks