I played a game of dodgeball for the first time in ages yesterday now today my whole body is sore. it hurts to sit, stand. what can i do to get relief?

"Weekend warrior": It sounds like you have not been physically active and are out of shape, then over-exercised. If your muscles are very sore to touch, or if you have brown urine or get lightheaded, dizzy etc, you might have dangerous muscle breakdown (rhabdomyolysis); get medical care ASAP. But most likely just achy from overactivity and no harm will come. Drink fluids and take ibuprofen or similar drug for pain.