I fell 7 or 8 feet from a horse last saturday, landed flat on my back, except for a piece of frozen manure,knocked the wind out for a few moments but just seemed stiff, now have jabbing pain in lower back, when my wife touches close to lower spine have stabbing pain shooting downwards, seems lower than ribs but is starting to get worse can hardly get up and down when laying, seems to get worse the longer I stand or sit straight,