I have been running ostarine MK for 8 weeks at 25 mg a day to help with my connective tissues and joint pain that I've been experiencing. I'm in my 50s and I do a lot of powerlifting now catching up to me. I got blood work done through a physical with my doctor and he said my CK levels where 5 times above normal and was frantic about it. Is this normal here or is something else going on