Moles coorelate with cancer???pictures.?

[duel king]

Fourteen years old, and a sudden lot of redish moles rose from my skin in the matter of less than a month. Most of them are on the bottem of my leg, lets say about two dozen on both legs combined. But there is one that really gets my attention on my upper thigh. It got infected, but I didnt notice until it actually bothered me. I put hydrogen peroxide on it to try and remove the infection, but within a few days, a scab formed and managed to get peeled off while I was putting on my pants. I did pick at it a little, but I know better than to pick at it enough to do what it done as a result of me picking at it.
http://tinypic.com/view.php?pic=2zgrywy&s=3
I've had a cough for a while now and there is sometimes blood in my stool.. I know those are symptons of cancer to some extent.. And also my two great aunts died at cancer at a young age..

I'm pretty scared, so give me honest answers, but please, dont try to scare me out of my wits just to scare me out of my wits.