My head hurts like I feel pressure in the back of it & my nose is really clogged & I have yellow mucus . Also I m having yellow mucus. I got sick a few weeks ago, but it wasn t as bad as this. Also, I was in better physical shape a few weeks ago then I m now. I started my football workout again earlier this week & was mainly out of shape. I m 5 9, weigh 160lbs & am a 17-tr old guy. Please help me, thank you.