I took a baseball to the shin two days ago. The bruise is extremely sore to the touch and is hot - still two days later. It does not hurt to walk. there is no numbness. There is a welt, it is now purple. The welt formed instantly. The bruising is more deep than just under the surface of the skin. I am concerned because it is still hot. What is more likely, a really bad bruise, or a slight fracture, or is there something else to worry about?