I've had pimple like bumps appear on my wasit line. I have put on a bit of weight and my pants fit more snug than they did and often irritate me if i wear them for a while while i am at school. The bumps have never occurred on my penis. I didn't think much of it because I am a pretty hair man and ingrown hairs are a daily occurrence. The bumps on my waist usually go away in a day or two and never pop. Though lately, I have had a slight amount of pain when peeing but usually only in the morning. I have had many many cold sores on my lips before, and i'm pretty familiar with what they look like. The bumps on my waistline usually happen just by themselves, but sometimes 2 can occur, usually spaced apart from each other. I sweat a lot and wear fairly tight pants. They don't hurt and usually have a hair coming out of either the top of side. I don't shave. I have had one pimple occur closer the the base of my shaft in the past couple of weeks, but that also went away in a couple of days. I have also been having random discomfort on my penis head, but on inspection, there is nothing abnormal, and no discharge of any sort. Tonight i just noticed a small red bump on my shaft, it has a hair growing out of it and is by itself.