I'm 23 years old and just spent ten days in the hospital because my CK levels were over 21,000. At first the doctors thought I had Rhabdomyolusis. However during my stay in the hospital my CK took a long time to drop and would continue to elevate in the evenings. So now the doctors believe I have myositis. Waiting for the results from my muscle biopsy to tell. Has anyone else experienced this and at such a young age? I just had my first baby 9 months ago and maintain a busy and healthy lifestyle. I feel like so much in my life will have to change if I continue to be in pain the way I am.