Originally Posted by beachpedaler

CPK comes from three different sources, brain, heart muscle and skeletal muscle. You would have to get CPK isoenzymes run to differentiate where the elevated CPK is coming from but it is common to see elevated CPK in somebody that has been doing heavy exercise. If you continue to have elevated liver enzymes you will need further testing to rule out liver disease. You will probably need an MRI and/or a liver biopsy. There are many different kinds of hepatitis. You may have only been tested for hepatitis B. You can also have hepatitis and still test negative for it. There is a window of time where the test is negative while you are in the begining stages. Hopefully there is nothing wrong. Good luck.