I have a sharp pain on my left shoulder blade, the pain goes through the breast. i am in east london?

Here is some Advice: Pain like the one you have may or may not have a serious underlying cause. Most pains like this are muscular in nature and settle down in a matter of few days(7-10). All you need to do is take paracetamol as needed, every 6-8 hour intervals. If you have any additional symptoms like fever, cough or shortness of breath, then you may need a chest X-ray to make sure that you do not have a pneumonia.