Fell directly on my shin off a ladder. Hit the edge of a five gallon paint bucket. It was severely bruised but did not cause any difficulty walking. The bruise is better on one side of my leg. But I bumped it again and there is a bump. Why is the bruise only now on left side of calf and is the bump a blood clot? I have had PE five years ago, but my health is fine and I feel okay. The leg below knee is tingly and aches at night while asleep. Should I be worried about a clot?