For a few years now I have been suffering from respiratory problems caused basically by exercise. It mostly occurs when I'm running, and I think it's important to note that I used to be very athletic and able to run a five-minute mile.
Whenever I run, I feel pain in my throat and chest, and I get the impression that it is difficult to breath. I can't describe the feeling very well, but I always get the impression that I'm breathing in bits of glass. After I stop running (which is, more often that not, soon) I find myself covered in cold sweat, pale, breathing hard, hard pounding, and coughing. The cough is the most interesting part, I think. It lasts sometimes for up to three hours and is quite debilitating. Sometimes it produces mucus or phlegm, and I have gotten a bit of blood mixed into it. It should be noted that this is often after only a couple of minutes of comparatively light exercise.
The doctors I've seen just give me an inhaler and tell me to come back soon so I can pay another bill. No medicine has helped at all The only doctor who seemed remotely curious suggested it might be 'athletically induced asthma.' He gave me a device to test my lung capacity and I thought the point was that exercise was supposed to lower it; I tested my lung capacity many times and even after exercising -- even while in the middle of a coughing fit -- it tested the same. I think that means it isn't athletically induced asthma.