What Causes Tingling In The Upper Lip?

I am 21, 5'6", 150 pounds, and am a female. I had oral sex a couple of days ago, and starting from that point I have been experiencing tingling in my upper lip. At the point that it began, I felt much greater tingling/numbness in my upper lip and also in my hands. Now it's just my upper lip, but it's been feeling like that for days, and I'm afraid that it's not going to go away. What is happening? Is there a way for me to stop the tingling?