I feel your pain. Did a full frontal plank when on holiday in July. One side of face bruised and swollen, hands/wrists bruised. Ribs, oh just awful. No Dr or hospital. Same as you, it's difficult to lie down and move. I had twin beds in room so they were pushed together, I had space for pillows to prop me up to sleep. Getting up from bed, a chair was awful as were laughing, coughing, sneezing. Sorry, I can only say pain relief, sitting up straight, wriggling to edge of chair to get up and standing/walking was only way I coped. Took 5 days to ease a bit but a full six weeks for all symptoms to disappear.