1 or 2 days ago I started getting this throbbing pain in my left arm isolated right above my elbow. The pain comes and goes, it's isolated and not radiating to any other part of my body. I looked it up and it said HEART ATTACK so I'm currently freaking out lol, I don't have any shortness of breath or chest pain/tightness, no radiating pain in shoulder or chin just a fist sized area above my left elbow. What could this be?