Take it from someone who has broken half the bones in her body...you are fine! Broken bones come with excruciating pain, a n intense burning sensation and major swelling. Also the chances of cutting off circulation are nill. I have set my own nose, toes, fingers, and even my right femur (although that was just a hairling fracture.). To put it in perspective here's what it took to break these bones: soccer ball to the face, kicked by horses, thrown off horses at high speed, getting run over by a car. Banging your hand on a chair is nothing to worry about. Ice it and maybe wrap with an ace bandage, no ER visit needed. Hang in there!