question: i have a stabbing pain the comes and goes between my shoulder blades and moves to the front of my chest causing shortness of breath and extreme tightening. It s so painful it makes me cry out in pain and I have a very high pain tolerance. It does not come at any specific time and can last from 1 or 2 minutes to 30 minutes of more. What could be the cause of this. It happens nearly on a daily basis.