Hi. I have Barrett s Esophagus and GERD; chronic sinusitis. LOTS of prolonged stress in my life and newer additional stresses. Other night, I could NOT breathe in nor out, as clear mucus / phlegm blocked my airways. I thought I was going to die or at least pass out. A recent Dr. visit showed no fluids in lungs, or anything abnormal, but then my irritations turned into the nightmare I just described, and makes me fearful. 63 y.o. male, 5 10.5 , @ 218#. Thx! YYYY@YYYY