Hey spode i done the exact thing landed on me left foot pointing inwards towards me right off the back of a bench, by any chance did you or feel to click like cracks, i tryed to walk it off i got a metre then lyed on the bench and the A&E gave me the same advice but lucky for me my mum had a broken ankle and used her crutches, took me week and a half to ride again and even then it jolts and in complete pain again.