What s wrong with my heart ? I have really bad anxiety as well as panic attacks , my muscles are ra finally sore , I have sleep apnea , as we ll as sleep paralysis and at times I can feel my heartbeat rapidly and at times I can t feel anything at all just weird heart palpations and i have shortness of Breath , I stop breathing unconsiously , I get a sharp pain when I do breath at times , I have a lot of discomfit in the left side of my chest as we ll.