After having my DaTscan 8 years ago, I was diagnosed with Orthostatic Tremor. I have been on a walker for 6 years. But my symptoms began over 22 years ago when I realized that I couldn’t stand still for more than a few moments and then my tremor would begin. I needed to walk quickly, avoid crowds or just sit down. Having had back surgery in ‘91, I always thought my problems were due to my back pain. There is a support group for Primary Orthostatic Tremor on Facebook which is very helpful!