I was cutting a piece of wood on a table saw, and it kicked out, and hit me in the shin (Hard)... I almost instantly had a welt the size of half a baseball, but very little pain. Only after appx 4-5 hours am I getting some pain, and the swelling is going down. The ball on the inside of me ankle is starting to go numb now, and it is starting to look bruised. it is like 6-8 inches away from the bruise on my shin... should I be woried, or is it going to go away in a day or two? should I be woried about anything specific? can this cause other problems?