I had been smoking for 5 years before things started to get bit less enjoyable. During my sesh's I realized acute pain throughout my chest/shoulderblades whilst inhaling. In the last year or so I had began coughing up phlegm but alot darker and more frequent than just in the morning/in the shower. It's been 6 months no toke or cigarettes yet I'm still coughing up this incredibly thick Black sputum which differentiates from light/dark brown to extremely black. I experience alot of weird sensations through my chest to difficulty breathing to tiny sharp pains which I assume is from the amount of phlegm. When I'm around second hand smoke I feel a bit clogged up and small pain but the doctor told me this is due to my lungs being hypersensitive. I've been to the doctors and was given heavy antibiotics and a dissolving product, took the dosage for the specified time but no change, I've been told by experienced smokers this could possibly be broncheal aspergillosis or pleurisy, doctors have been no help, wondering if anyone else has experienced similar things? Apologies of this wasn't posted in the right section!