Hi doctors, I take covishield vaccine on 04may i have no issue that day just injection site pain so i take PCM but on next day night I have trouble breathing so I go to prone position and that slightly recovered on next morning. But from 06may I have muscle pain and feeling soo fatigue and tired and also back pain which is ongoing and today 10 may my back pain become so severe that I hardly walk and seat and even difficult in lying in bed. What should I do I really concern about my back pain? What medicine and precautions should I take?