Ok one day (jan 4th or so) i was cleaning my penis in the shower and i noticed that there were bumps on the head of my penis, (only visable when the skin is pulled back) and it appears to be permenant goosebumps but clustered together.. and every centemeter or so there was another cluster of 5 or so goosebump sized bumps has this happened to anyone, and (for doctors or medical pplz) is this a problem?
p.s.also for a much longer time (for about 6 months or more)) ive had the same small bumps on the shaft of my penis near the scrotum (they are almost impossable to see unless u look for them ) and they only appear when im hard and in a sort of ring around the shaft. (roughly 1 centemeter apart each.)The 1st one is what worries me because they are smaler but they are clustered together in groups of 5 or 6 (please respond brandeye or someone 
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EDIT: i wanted to add, when i masterbate (my cum isnt white yet its a shade of yello) i can see small slivers of white in my cum (like dandriff) something wrong with that?
I would see an actual Dr. if I were you. I wouldn't go freaking out right away though, After having sex with this guy for the first time I was all itchy and red down there. I freaked out and was positive this SOB had given me an STD, turned out to be a yeast infection treated easily with OTC drugs. Just monitor it, suck it up, and call a REAL Dr.! Otherwise your never going to figure out whats truley wrong.
It is normal for semen to have a slightly yellow cast to it right out of puberty. It will eventually turn milky.
Yea just go see a doctor. But i wouldnt have sex with anyone untill you do just in case...