HI, I HAVE HAD THIS DRY HACKING COUGH FOR OVER A YEAR AND CAN T GET RID OF IT. I HAVE BEEN TO SEVERAL DOCTORS THAT TOOK X-RAYS BUT THEY ALL COME BACK NORMAL. SOME TIMES WHEN I COUGH IT IS WAY DOWN DEEP, I ALMOST LOSE MY BREATH, I GET TO BREATHING HARD AND I CAN TASTE COPPER AT TIMES WHEN I COUGH. I AM AT MY WITS END TRYING TO FIGURE OUT WHAT IS COULD BE. I DON T SMOKE, DRINK OR DO STREET DRUGS. CAN YOU GIVE ME ANY IDEA AS TO WHAT THIS COULD BE? THE DOCTORS THAT I HAVE SEEN ARE LOCAL YOCALS. THANK YOU FOR ANY INFO YOU CAN GIVE ME.