Invisible, since I think I can trace my Parkinson's way back, here is my timeline as far as I can figure:

45+ years ago started my lifelong battle with depression (59 now)
30+ years ago began having continuing problems with insomnia
30+ years ago I started losing my sense of smell
25+ years ago I stopped swinging my left arm
10 years ago - frozen shoulder
9 years ago - internal tremor
8 years ago - left hand tremor
8 years ago - diagnosis of PD
6+ years ago - neuropathic pain, neuropathy, akathesia, restless leg
2 years ago - dystonia

I don't know if this is helpful or not - but right around my dx, i had internal tremors -- not now though (just other symptoms ... )

jean