Hi, I'm KC, A few day's ago I went to the ER with back, shoulder, and pain radiating down my left arm. The Er keep me over night for observation, I had blood work down ecg/ekg,and a stress echo test down. I was giving a nitro patch for pain. weverthing came back normal. I am a female 51 wit high colesteral, menapause, smoker, family history with heart disease and heart attacks. 15 pounds over weight. Yesterday and more today I'm still having tingling pain down my left arm. just wondering what I sound do.