By that I mean, did you change your laundry detergent? Move to a different house? Get a different car? Did your dog pass away?

I have to ask, did this change happen suddenly or has it been a gradual change?

I started out with the typical unilateral (one sided) effect of tremor in both my right leg and right hand. Somewhere about three years into it my hand tremor disappeared and I got it in my left leg... no upper body tremor whatsoever. When my meds go off my left leg starts to shake, then my right leg (at which time L leg takes a break) then when I really get going its every leg for himself. When medication kicks in, the left leg relaxes first, then the right foot does this very strange thing where it kind of walks around by itself using a heel toe kind of walk. I don't know how to describe it. Very odd, but always happens. I've heard other people say that they have traded one symptom for another with no explaination. Now that you've experienced PD on both sides of the spectrum, which do you prefer to be plagued with?
Just curious...