It last 5 to 20 minutes, get bad chest pains. When I cough I get a lump form which is very painful. I'm a smoker of 35 years.On the street that I grew up with 2 people have had esophagus cancer, 1 has died, another breast cancer, 1 removed and now will lose the other,another mouth and throat cancer, another a cancer I don't know where it was.Could be more for I know. What ever I have I need help before I don't get that next breath. It scares me and my family they don't know what to do. Sometimes I have no recall that it has happened. I'm on several different medicines, Have Fibromyalgia,Depression,acid reflux,aniety,high cholesteral,RLS,IBS,Partial hysterectomy,kidney stones,chronic pain.