Yesterday I went for a short bike ride, for an hour maybe, and my lungs began to hurt very quickly (within 5mins of riding). I don't believe my lungs were bleeding, but it sure did feel like it. If I felt like I was dying I'd return home, but it wasn't bad enough for me to turn around. When I got home and took deep breaths, it was a bit painful. I went for a long walk and I felt it a little too, but not as bad when riding my bike.
Couple months ago I took a bike ride, went drinking that night, a few days later went for another ride, and I ended up being sick for about a month. At one point throwing up, chills, nasty phlegm that woke me up at night when I couldn't breathe, trouble taking deep breaths, and all that good stuff.
I've noticed even when I was a teen that my lungs hated the cold air, jogging down the street to catch the bus would hurt. So it's not something that just came up recently.
So my question... wtf is wrong with me?