I am a healthy 43 year old female on no medications. I have had back & neck problems in the past but nothing serious. In April of 2007 I experienced several months of severe hip pain. It eventually decreased with chiro care & exercise. This past April (08) it started again. Although I am not sure if the hip pain is realted, I had a CPK test on Aug 1st (my GP ordered this along with thyroid & cortisol tests due to my complaints of fatigue) and it came back at 2500, so I was sent to the emergency room where it tested at 2700. After many questions and tests, the hospital admitted me & hydrated me with IVs until the level was down to 1700 - then I was released. As a follow up, my GP ordered another CPK 4 days later & it was up to 7000. Once again, I went to the hospital emergency room (different one this time - a teaching hospital) and was admitted (when they tested it was 6500 before starting my IV). I had many many tests performed for my heart, liver, kidneys, thyroid, etc. and all were negative. I also had an EMG test performed which I passed. I had started a weight program at the local gym on 7/21 and had 4 sessions (the last one was a rough one) prior to these CPK tests & I am hopeful that this is the problem although the Drs said it should have already started decreasing. After hydration, my CPK levels were down to 3000 so I was released a 2nd time & told to stay hydrated. Tomorrow I have to go get another CPK test completed & of course, I am a little afraid...any ideas on what can be causing these high levels without any other real symptoms except some fatigue and hip pain (which has steadily improved since April)??? Thanks.