What Causes Numbness And Tingling In Lips With Itching On Body?

Hello. 2 day after having sex, my hands and feet felt numb and my lips were tingling...the numbness went away, but the lips kept tingling off and on for a few days. 2 weeks after this sex incident, i started feeling hot and itchy all over. Today which is almost 3 weeks after, my hands and feet are numb again. Is it a std?