I am currently grappling with the same difficult decision. I was diagnosed this past week. I spoke with a trusted consigliere and was advised that once I notify my employer, many protections under ADA and other local State statutes apply. However, one always wonders, "How will I be viewed?" "Will every oversight or mistake at work, that otherwise might be 'normal,' now be attributed to PD?" "Will telling my current employer inhibit future job prospects?" "Is this the beginning of the end of my career?"
In the end, I think I am leaning toward notifying my employer, who I believe will be supportive. It's really not any of the former questions that are driving my decision.
PD is a "Family Matter." It is already having an impact on my spouse and kids. The world is small and even smaller with the complication of social media. I feel it is unfair to swear my spouse and kids to secrecy so my employer doesn't find out. They need support just as I do. I feel attempting to keep my PD a secret will add undue stress and pressure to my family and me, which is exactly what we don't need. We need a community of people of care, love, faith, and understanding to help us through this.
As of this week, my world is different. The world is different for my wife. The world is different for my children. And, the world is going to be different at work. I simply will not be able to completely separate my work and home life, so I am erring on the side of what I feel is best for me and my family.