In most cases of bronchitis, symptoms will appear similar to those of a cold, as bronchitis typically develops following a cold or some other type of respiratory infection. Common symptoms include a cough, fatigue, feeling short of breath, chest discomfort, mild fever, and chills, and coughing up mucus that can be clear or discolored. Acute bronchitis can be accompanied by body aches or a mild headache. While acute bronchitis doesn’t typically require medical attention, you should see a doctor if your cough lasts longer than three weeks, your cough is preventing you from sleeping, you have a fever over 100.4F or 38C, you have discolored, or bloody mucus and you are experiencing wheezing and feeling short of breath. You should also see a doctor if the cough lasts for more than three months or you are experiencing repeated bouts of bronchitis as these can both be indications of chronic bronchitis, which is a more serious condition.