I had intercourse with someone who just came back from Thailand. After one week, I feel this weird feeling from my groin area, butt, and down to my legs. The pain feels like I just got stabbed with needle when You get the flu shot. I get this once every 30 min to an hour. The pain is in different spots. Sometime I feel it on my butt, thighs, and legs. What kind of std did I contracted? Please help?