I have had a cough for about three weeks now. It has gotten progressively worse with wheezing and phlegm and now every time I laugh, run, breathe cold air...etc I go into a fit. I'm not sure if it's related to the reason I'm writing this, but it might be. Every time I step heel-first, flip my hair, jump, or turn my head to fast it feels like the right side of my brain bounces. Also, I'm not sure if this is the best way to describe it, but if you've ever had a cavity and bit down on metal and you taste a sort of metallic pain...that's also what it sort of feels like. Any feedback?