Hi, for the past week I have been experienceing a weird pain/sensitivity on my left uppper torso under the armpit area which extends around my shoulder blade at the back and sometimes on the left side of my pectoral muscle. I say sometimes because the intensity if the pain shifts from one place to another in the areas mentioned above. I have been taking strong ibuprofen and this seems to help but the discomfort and pain comes back everyday. It is more noticeable when I move these areas of my body. Can you please help?