So, I have this weird thing where my inner thigh will start tingling, usually when I run or when I'm lying down (as in sleeping). It has also affected me during sex, which is a major pain in the ass. It's usually triggered by sensations along my skin, like if my boxers are riding up on me. It lasts for about fifteen seconds and is very uncomfortable, and sometimes painful. It's been going on for, well... years, now. I've never seen a doctor about it. I'm starting to think I should get checked out.