im 27 y old and for the last 3 months i feel almost 90% of the day pain in left shoulder blade strange feeling in chest mostly left side like burning or like i have something on my chest that is making me pressure and feel uncomfortable escpecialy when i sit , with thease sympthoms also i feel pressure and burning in both side of jaw and like dizziness in neck like someone is pressing me from up and sides also pain in arm, palm feel like bones hurt me also behind shoulder middle back pressure pain , checked heart and abdomen everything is fine... when i move my left shoulder everything cracks and pains especialy when i move shoulder and make little pressure under left clavicule make pressure under my left clavicule something pops up makes a cracking sound and gets back to place... its very annoying i cant function what would u suggest me to do any exercises or anything please help me..