After diagnosis I carried on the same in work for about two years. I then realised that my reactions were not fast enough to feel safe driving and I gave up . My company were great and they allowed me to get taxis. However after 4 years I was conscious that I was so much slower, especially with my thought process and I felt I was not doing my best for the young people I was supporting, so i decided to retire.
I miss the social aspect of work but as I used to work long hours and weekends I am enjoying seeing more of my family and doing other things that having time allows me to do.
I sometimes feel I gave up work too soon, but the truth is, I was finding it too difficult physically and mentally. I would advise you to think long and hard about when you want to leave and make sure that it is right for you.