I had sex with my ex girlfriend about 7 days ago, the first session lasted for about 3 minutes without protection, tho I released into her. The second session was longer but with protection. Now, am feeling (when relaxed) some sudden ant-like movement in different parts of my body, random tingling and stinging feeling and my body temperature is a little above the usual. Asides this, I feel no sign of illness and am doing very fine. What could be the problem pls. I'm worried about sti