I am on 10 mg of Zetia once a day. I just had total knee replacement on. August 24 th. The knee is doing great. But I am unable most days to get out of the bed for severe muscle aches,bone, body , head, migraines severe diareah and all kinds of stomach issues. I have lost 32 lbs. in a months time, is it the zetia? I have been on this before the operation Help