Shayne, I'm glad to hear you've got some sort of diagnosis, and I really look forward to hearing what the recommended dietary or other guidance is.
My first reaction after reading the list of McArdle's symptoms was similar to those above -- basically, no way. McArdle's is described as a genetic inability to process muscle glycogen. But many of us here are high functioning athletes with plenty of explosive power available without a warmup (ever show up to a cyclocross race with just enough time to get to the line?). And what many of us experience is entirely episodic; with a certain set of preconditions, like an unusual amount of rest, long-haul travel, or increased carb intake, and particular eccentric muscle activity (ie walking downhill), an episode occurs, which lasts for days until it clears up.
But the more I think about it, the more I think it's probably a mistake to try to find some holy grail of matching symptoms with a corresponding magic treatment. It seems clear that most of us are experiencing some sort of metabolic myopathy -- basically, with the right conditions, we go into rhabdomyolysis. It seems very likely there is a combination of genetic factors, specific body chemistry levels brought about through particular rest/dietary conditions, and physical triggers that makes a sort of perfect storm to initiate an episode. Maybe it doesn't match the exact set of symptoms that define McArdle's, but biology is always on a spectrum.