This is a very common occurrence. The phrase “everything is connected” is very relevant to acupuncture and Chinese medicine. Treating an arm by putting needles in your leg is very common, or a head for a back, or shoulder for a hip. There are 6 major channels on each side of the body. Just one will run from the very end of your toes, up your legs and torso, to the top of your head, then back down to the tips of your fingers. If I put a needle in your ankle, you may very well feel a tingling qi sensation in your wrist.