I woke up about 3 weeks ago with a soreness in my right shoulder and a numbness/tingling sensation all down my right arm, from shoulder to thumb. My right bicep felt bruished. I thought I must have slept on it and pinched a nerve and it would resolve itself. However, 3 weeks later, although the shoulder and bicep pain are gone, I still have tingling/numbness from forearm to thumb and index finger. Any ideas?