Whenever i sit down on the couch or lie down my coccyx hurts why is it in pain and is there a sollution?

Coccydynia.: This sounds like coccydynia, which is a pain in the tail bone which occurs after sitting on a hard surface for a long time or from falling onto your tail bone onto a hard surface. Can take a long time to heal up. You can try sitting on a "donut", that soft cushion with a hole in the middle that you find at the surgical supply stores. Anti inflammatories may help.