:-D I HAVE TINGLING BEGINNING IN RIGHT SIDE, BACK, JUST BELOW "SHOULDER BLADE", RADIATING DOWN RIGHT ARM. BLOOD VESSELS IN MY ARM SEEM TO BE DISTENDED, AND THERE IS A TINGLING SENSATION IN ARM, FOCUSED ALONG ALL BLOOD VESSELS. FEELS AS IF ANTS ENTERED THROUGH HOLE IN MY SHOULDER BLADE AND WERE COURSING THRU EVERY BLOOD VESSEL IN MY RIGHT ARM TOWARDS MY RIGHT HAND... :O HAD SYMPTOM FOR THREE WEEKS AS OF 08/16/2010... IT IS NOT PAINFUL, BUT VERY DISTURBING AS IT IS NEW, RAPID ONSET SYMPTOM. SYMPTOM LASTS FOR SEVERAL MINUTES IN EACH EPISODE, AND GOES AWAY... EPISODES BECOMING MORE FREQUENT, TROUBLING BECAUSE SYMPTOMS COULD BE SIGN OF PROGRESSING CONDITION OF UNKNOWN CAUSE. ABOUT THREE MONTHS AGO, I BEGAN EXERCISE REGIMEN [BEFORE THIS SYMPTOM BEGAN] INCLUDING SITUPS ON AB LOUNGER, PUSHUPS, AND WEIGHT LIFTING: ARM CURLS AND PRESSES WITH TEN POUND EACH HAND HELD WEIGHTS. I AM 64 YOA, 5'10", 180 POUNDS SEEKING 165 POUNDS.