I feel a chest pain on my left side ( Opposite side of the heart) each time i take a deep breath. Now i noticed when i take a breath i burp and the pain is relieved but its not like a heartburn like GERD/ Acid Reflux it is a pain to the left of the middle of my chest a bit above my nipple but more to the center. I noticed though it feels like when someone was to put pressure on a bruise. I had this same pain before but not when i breath just with movement and on the right side too but it was all with movement and it eventually disappeared but it has just re appeared suddenly for some reason on the left side? Please, HELP