Life is just a bowl of pits

Well, I think it is official. My left side is being attacked. Last evening, I was lying down with my knees up and my feet on the bed when my left leg started to vibrate. It only lasted a few seconds because I extended my leg and tensed the muscles. It didn't happen again and nothing hindered my 2 mile walk this morning, so maybe it was an aberration or, maybe it was the beginning of stage 2 PD. I vote for the former. Other than that, I feel good, but as frustrated as an arsonist in a petrified forest.