Whenever I breathe deeply, stretch, or even sometimes just move a little my ribs right below my heart make a pop. It s only on that side and the pop is extremely painful. It feels like I m having a knife shoved between my ribs. Also, there are dark purple and red lines almost like veins that are much too clear on that side of my chest. Lastly, my lungs almost always feel like they are filled with ice water and it s a very sharp pain. All of this has been consistently happening for around two years and I m not quite sure what s causing it or if it s even that serious of an issue.