Question: Every now and then I will get a slight to medium pain on the left side of my chest about an inch left of my sternum. The pain will last for about a few seconds. My heart rate and blood pressure are all good and when I exercise (running on the treadmill) I feel OK. I usually feel it when I am relaxing like driving, sitting or laying down. Is this something I should be alarmed about?

Is it a shooting or stabbing pain? Its best to get a proper diagnosis and then ask questions rather than getting guesses of what it might be from us.