Yup. If the sciatic nerve is rubbed on. Which is the whole point. It wouldn't be sciatica except for some reason that nerve is trapped, pinched, rubbed on, something like that. There's also Piraformis which is when the same nerve (sciatic) is trapped by the piraformis muscle. Different things can pinch the sciatic nerve, but the result is sciatica. If dancing makes it worse, I think the best you can hope for is different dance moves. A Physical Therapist would know best how to advise, I think. Though it should be one who specialized in Sciatica. What most doctors will never tell you is that eventually that sciatic nerve is supposed to wear out from being a major pain to your life. Time being compressed renders it less painful. Which doesn't help now, does it? Mine was a result of a bad chiropractic move, way down the back of my pelvis, in 2009. I had to literally sit on a rolled up thick foam matt, duct taped to stay that way as anything touching the back of that leg hurt terrible. I couldn't sit on chairs normal for years. And that throws off the back. Now, it's not a problem except rarely. Not much comfort except for the part where it does cease to impair one's lifestyle, if you live long enough. Gabepentin helps me. lidocaine patches helped me. Diclofenac patches on the spot helped the most, but they are prescription strength NSAID, and too much of that stuff can raise blood pressure. But they do work. Also, you can buy Voltaren (or the generic) diclofenac gel and smear a bunch of it on the spot that hurts the most, and even down your leg if it's doing that. It comes with a visual aid so you don't overdose yourself, and instructions. Of course, there's controlled substances, but that more rescue then daily. I've had steroid interventional injections for it, and 2 out of 3 were helpful. If your ins pays for that, it's risky but worth a try during these years before it wears out. Good luck.