Tingling under left shoulder blade, sometimes it aches ,but seems to tingle a lot now, any ideas. very weird feeling and uncomfortable?

Shoulder pain: Shoulder pain common causes and presentations are many but most frequent are soft tissue injury. Like a muscle sprain or even a rotator cuff injury . These injuries can cause pain in the shoulder which could radiate down the arm or to the neck. Other causes could be radiating injury from the neck. Either way you need to see a doctor to further evaluate your problem . Rest the shoulder for now :)