Three weeks ago a bottle of water fell out of a sack and onto the top of my foot by my toes. The area turned black and blue and I thought nothing more of it. At the time it fell, it really hit hard and it hurt like the devil. This morning I discovered a hard lump in the same area about the size of a marble. Could I have a ganglion cyst in that area? I noticed pressure when I have my shoes on and thought it was the bunion dealing me a fit. Any ideas? Kind of hard to go without shoes in the winter time!