Things are looking encouraging. CPK levels are back to normal. This could be either a) a result of my complete inactivity for the past few weeks, or b) an indication that the whole thing was viral and that I am better.
This is being put to the test: I have four days in which to get "back into the routine"... I'm not going back to karate again (yet), but will work out in steady increments for the next three days. Then, on Monday, the test the CPK again. If its still normal, I am in the clear. If it is not... well, then back to square one.
For those of you who haven't been regular readers, I'm talking about this.