Hi doctor, my uppoer back, left side below the sholder bone hurts when I sleep on my back. Also when I take in a deep breath. This problem started after I took my second dose of Vaccine. Its been 3.5 weeks since I took my 2nd dose of vaccine. But this pain bas not come down. It sometimes feels like I have some wound on the left side just near my sholder blade. It generally hurts when I rotate my left arm. Can you please suggest when needs to be done here. I consulted a general Physician who told me that it could be because of low Vitamin D, which was confirmed after he had asked me to get the test for D and B12. I also have l4/l5 disk herniation which hurts once in a while but goes off after few days.