AFTER ABOUT 3 DAYS OF ZOCOR MY LOWER BACK SUDDENLY BEGAN TO HURT ...

AFTER ABOUT 3 DAYS OF ZOCOR MY LOWER BACK SUDDENLY BEGAN TO HURT SO BAD I CAN HARDLY MOVE. I HAVE NEVER HAD SUCH PAIN, IT IS ALMOST LIKE A GALDBLADDER ATTACK PAIN. I TAKE CELEBREX FOR ARTHRITIS IN MY SHOULDERS, BUT MY BACK HAS NOT BEEN BAD. I RAN OUR OT CELEBREX AND HAVE BEEN OUT FOR ABOUT 5 DAYS, I HAVE TO GET BLOOD WORK DONE BEFORE I CAN GET A REFILL, BECAUSE I HAVE LUPUS. DOES ANYONE THINK THE ZORCOR COULD BECAUSING THIS PAIN? MY DR SAYS KEEP TAKING. THANKS FOR ANY HELP.