I HAVE HAD LOWER BACK PAIN IN THE PAST DUE

I HAVE HAD LOWER BACK PAIN IN THE PAST DUE TO HERNIATED DISC. IT WENT UNRESOLVED FOR OVER A YEAR BEFORE WE FOUND THE RIGHT ANSWER, WHICH WAS A 2 WK SODAGE OF PREDNAZONE (FORGIVE THE SPELLING). THAT WAS 5 YEARS AGO, SINCE THEN MY BACK HAS BEEN GREAT. UNTIL TODAY. FORGIVE ME FOR BEING BLUNT, I WAS ON THE TOILET, LEANED TO TEH LEFT TO CLEAN MYSELF, AND HAS A CRAMPING SPASM THAT TOOK MY BREATH AWAY. AFTER 5 MINUTES AND SOME LAMAZE BRAETHING I WAS ABLE TO STAND, BUT NOW HAVE SEVERE BACK PAIN IN LOWER LEFT QUADRANT. ANY CHANCE I RUPTURED SOMETHING? I'M 43 FEMALE, 250LB 5'9"