first off i'm a male who had mutual oral sex with another male on february 15,2012.i ejaculated in is mouth and i perform on him for about 3 minutes with no ejaculation.about 5-6 weeks later i developed a numb foot and knee and leg soreness.it went away after a couple of weeks.my concern now for last 2 month's i break out with little bumps on my arms,which go away after a couple of days.i break out with at least 1 hive per day on my chest,goes away about an hour and also have back pain with knee hip joints hurting which fades away then comes back.also on that day feb 15, i believed i ate some potato chips 3 hours before incident.do these symptoms have anything to do with hiv and do you think eating the chips put me at risk and that i need to test.thank you