Episode Of Sharp, Deep Pain In The Inner Thigh Similar To A Cramp Leaving A Painful Bruise. What Could It Be?

While simply standing a very deep and sharp pain was felt in my inner thigh. The pain was localized, sort of like a long needle was forcibly plunged into my leg and then removed. The pain took awhile to subside, and in some forms reminded me of a leg cramp that has to work its self out. The only problem is now I am left with a deep painful bruise where the pain occurred, and I never bruise when I do get leg cramps (which is often)