@Syl, I used to get BRONCHITIS every goddamned winter. It went on for like 10 years, and suddenly it just "stopped". Unlike a cold, BRONCHITIS requires anti-biotics to get rid of.
@The_Dizzy_Vizzy, Mine has been like this ever since I was born, mate. I've gotten all sorts of problems, such as, but is not limited to: sore throats, colds, stomache bugs, etc.