Hello, 2-3 days ago I felt a stinging on my upper right front thigh. I found nothing, thinking I had been bitten, I let it go. I have felt the same thing in the same general area several times since then, but find nothing. Yesterday, this area started going numb, now the numbness is from my mid front thigh to my hip area. I am also having pain in my groin area today, and now it seems worse. What should I do??