What Causes Radiating Pain In My Shoulder With Tingling Sensation?

i have ai pain that starts in my back on the right near the shoulderblade the pain radiates fromback to front just under right chest area to the shoulder down arm with a sometimes tingling sensation i notice that when i try to sleep or lay on my left side this cause,s pain on the right[sharp] please note[ overweight, short 5,5 smoker[pack two packs a month] no history of heart or lung desease [weight 235 estm] have high blood pressure [ can,t remember all meds but -lysinopril 2 others .family history of diabetes[mother, father, both deceased] having said all that doc my best geuss is i slept on myside the wrong way ? [firm matress ] if there is a fee involved,thanks but never mind merry christmas.