Re: chest congestion from flu not going away
I don't know what it is, but I have had the exact same thing from time to time with my chronic post nasal drip. It tastes like I've been chewing on a tin can. I don't have it all the time, but notice it about once a week or so.
I don't know if it's connected, but I seem to notice it when my drip is the heaviest and gagging me the hardest.