A Matter of Time

I've been having chest pains the last few days. A very sharp pain just on the left side of my chest. This is not the first time I'm experiencing the pain. I've had the pain on and off the last couple of years. I'm only 27 and my body is feeling like a 72. I become easily breathless when walking up hill or long distance. Aches, pains and what else? Maybe I'm not physically as fit as I used to be back in my school days. I used to play all kinds of sports and was pretty active in the sports club. I had pneumonia when I was very young which resulted me in having weak lungs. I'm afraid of exerting myself for fear of collapsing. Ever since 1 Jan 2010, I've been having this on and off dry cough which weakens my lungs every time I cough. I've tried Western and Chinese medication but looks like I'm immune to them already. What has happened to me? Only time can tell...