Ok, the nail on my right middle toe is dark purple. This after I had worn shoes that were too small. The weird thing is I don't feel any pain at all now. I had started to experience bad pain the one time I was walking in these shoes, but I was already out and didn't have anything else to wear. I know the toes were being squeezed, but didn't think anything like this would happen. And now one of my toes is purple! What to do/is this serious? Thanks!