<s>[INST] 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, [/INST] Hi, Welcome to HCM, It seems that you might be having fracture of tail bone giving rise to severe pain while sitting straight or pain while get up while lying. Go for X-ray lumbo sacral region to rule out fracture of tail bone or any other injury on lumbo sacral region. Mean while use hard bed for sleeping and take rest. Ok and bye. </s>