Hi, I am suffering from constant upper back pain in shoulders, between shoulder blades and in upper spine starting from neck from last 5-6 months. Apart from that I feel heart palpitations many times on exertion mostly. Sometimes I get shooting shock kind of pain while walking which and goes away within seconds. I am really scared if this all is related to heart.  I just wanted to confirm whether my heart palpitations and the upper back and neck pain are related somewhere. I am done with ECG, blood work , TSH and all came normal.