True story, I went to the Dr. years ago with some chest pains. I immediately went to the hospital for a stress test. All was good there but still chest pains. That afternoon I had a Chiropractor appointment. I was telling her the story. She started poking around and said "you have a rib out of place" She got out the impact tool and within a couple min. the pain was gone. "What did you do to yourself" I remembered a month earlier I had slipped off the front bumper while working on my tool truck landing on my chest on the top of the radiator.