A Slightly Odd Dream I Had.

Umm Yeah, I need to know why i had this dream:

Iwas looking for a friend of mine around my school on a sports afternoon. I went to my schools swimming pool (yes, my posh school has a pool) during my quest, and encountered my friend SM. We started talking and he he made a joke about how I came to look at everyone change and all the boys swimming (its a boys school) and i made a quick joke to brush off the subject. But then it hit me. I looked around and COULD NOT HELP but notice the size of everyones packages in their swimming shorts/trunks. I distinctly remember everyone i hate being there with HUGE bulges. I was startled. Oddly, i never once compared them to myself.

Is this trying to tell me something about my confidence or my inferiority or something else?