I have several skin colored bumps on the shaft of my penis. I was worried since I have never had that many before. So I went to the doctor and she told me they weren t an STD. And not to worry about it. Also I operate a earthmover which is extremely bouncy. Which creates a lot of skin rubbing with my pants/underwear. After working in the machine I noticed a small cluster of blisters around one of my skin colored sore (which most have a hair inside). Do I have to worry? Please help? Extremely nervous!!!