Infection would most likely be red, hot to the touch and hurt like fucking hell. Sounds like ya might of just whent in a bit weird. Hapens to all of us. You never know when things like this will happen. Even after youve been pinning for years somtimes shit like this happens. Just keep an eye on it and hot pad it like 4T said. Just watch for heat,feaver mainly. If you have an infection you most likely gona know it. I had one in my tooter and was a damn cripple for like a week.