ok.. for some time now maybe a year i had had those small white bumps that are sweat glands or whatever and i read on here those are normal. HOWEVER, probably since about a year ago some times on the base to middle of my penis a small red bump will turn into a decently large bump in a matter of a couple days. after a few days of having it i pop it and there is blood and puss. i have only had one partner who i was her first as well. but these bumps have been happening since before her. they happen maybe once every 2 months or so im guessing . any ideas? im really scared but im also really clueless on to how it could be an std if ive only had one sexual partner and i had it before her..also after i pop them they go away in about a few days to a week.. thanks for any help you offer