Badslinky, the tubular casts in your urine have me concerned. What was your creatinine?
Was an aldolase level sent to look for myositis?
This could all be due to overtraining, but polymyositis should definitely be ruled out. By chance you aren't taking a statin (Lipitor, Zocor, Vytorin, etc.) are you? Maybe I missed this in medical school and residency, but why is your physician checking for hepatitis A/B/C? Were your LFT's also elevated?
I will be leaving next week for an extended mission out of the country and will not be allowed to access EF. If you PM me, I can give you my email for questions.