I had been coughing/wheezing with runny nose and fatigue for almost two weeks. I went to the doctor 2 days ago and he said I have Bronchitis and put me on Azithromycin. It seems to have started working but I still had a couple coughing fits yesterday. Last night I thought going outside would help. It was a little chilly and rode my bike for about an hour. I could feel a little tightness in my lungs as I breathed but most of the coughing stopped. The slight tightness continued until before I went to bed and I started feeling a stabbing pain on my left side in my chest as I would breathe in, I felt pain. It felt like maybe my lung. Well the pain continued to today and still persists but has gotten a little worse since yesterday. It hurts to breathe in, cough, and lay down. The pain even feels like it goes all the way to my back-the bottom of the shoulder blade. Could this pain be something serious? Is it something I should check into? Or possibly a pulled muscle as I had been coughing a lot in the past two weeks? I seem to be feeling fine all except for the sharp pain. The antibiotic seems to be working. I don't have insurance and don't want to make a trip to the hospital if this is not serious.