I have been experiencing a "crick" in my left shoulder blade for a month now. Recently my left arm has been getting numb for a few minutes then it's back to normal. Today it's been hurting in my shoulder blade more so than the past month. I also noticed a new symptom, I now have bruises on two of my fingers on my left side and my thumb has been numb ALL day instead of a few minutes. I'm not the type that rushes to see a doctor for "nothing". But something is telling me I really need to. Please help!! Thanks