 They can't really distinguish whether or not it's muscle. The difference. Right. Yeah. It just hurts. Right. Now, when it pinches on a nerve, when there's nerve impingement, now what you're going to feel is radiating pain is what we call it. So it'll leave the back, go down the leg. Oh, I've been there. It's that sciatic nerve that gets pinched. And it really can throw you off. Down your leg can go clear to your toes. Yeah. Right.