I had a cold a couple weeks ago and other than waking up stuffed up in the mornings it s about gone. Than today I choked a little on a piece of toast and received a terrible burning in my chest while trying to cough it up. My chest is sore but not like that burning. Than again this afternoon I sneased and the same thing burning all through my chest and back. Now my chest feels very heavy and sore but it is not hard to breath and it sounds clear when I take a deep breath.