Hello everyone. Can you please tell me what it could be? Today my bone…

Hello everyone. Can you please tell me what it could be? Today my bones started hurting (like I suddenly did a split and stretched everything down there). Plus my coccyx, lower back, it hurts to walk and I'm doing it like a penguin ? Sitting for 5 minutes on a chair, barely standing up (it hurts so much). I feel like a grandma! Maybe someone has it too. How was it? November 1st