Turns out I have fractured my coccyx! The hot bath helped and I have strong painkillers from the doctor which are helping too. Next time it snows, I'm staying in! :o)
I broke mine giving birth to my daughter who is now 22, the pain is bad sometimes especially if it moves i can feel it popping, i was meant to have it removed about 19 years ago but found out i was pregnant with my son who is now 20, but ive learnt to live with it, i just dont sit on any hard surfaces.