I get a cold very often, and i always get the same symptoms, what's wrong with me?

[moe53]

I am an athletic 15 year old male, i have been getting a cold about once a month, once every two months, for about 2,3 years. Every time i get this cold i get the same symptoms; i first start to get a scratchy throat for 1 day, the next morning a have lots of throat congestion and nasal congestion, and then in about 3, 4 days the cold is gone. This happens every time i get a cold. I have heard that once you get a cold, your body gets immune to that cold, and you don't feel sick, how come it feels like i get the same cold every time, and there is not a single difference in the symptoms every time i get a cold?

Any feedback would be appreciated.

Thank you