I have squeezing pressure in the center of my chest and feel in my back as well. The pressure is constant and is more compressed when I sit with my back leaned, or pressed up against something (more pressure is felt here) or lye down. I went to an urgent care facility and the doctor told me nothing, during the examination, pointed to any direct cause and my heart, lungs and belly appeared fine. An EKG was performed as well and was normal. I am quite concerned because this feeling is felt through out the course of the day and never goes away. Can you give me an idea of what could be the cause?