I slammed my finger in the door at work about 2 weeks ago. It was swollen and purple[just from the smallest joint to the tip], and the nail is completely black. Well, the swelling has almost completely gone away, the end of my fingernail[cuticle and a strip of skin below that] is really dark as well, and the nail is reeeeally starting to pinch in at the sides. Is this normal? Should I go to the doctor? It's only causing slight discomfort.