Hell, even if the causality was that lying down and meditating upon your body caused you to become aware of the problem in a new way and undo it yourself, that's still worth the price of your appointment (presuming this has a beneficial effect tonight). If the needles actually played a role -- I don't know enough about current studies on acupuncture to have an opinion one way or the other -- then huzzah for that! I'd take it over drugging myself any day.