Employers should know it is not laziness. You are doing your best and going as fast as you can. I continued to work for 6 months after my diagnosis. I did not really feel supported by my employer/co-workers. The most debilitating issues with regards to my working capacity were slowness of movement, fatigue/lack of sleep, muscle stiffness/rigidity, standing and walking, sitting for long periods, handwriting, difficulty with getting to work, anxiety and depression, hypertension/low blood pressure, problem solving and memory issues, speech and communication, tremor/Dyskinesia/Dystonia.
There was not really one particular time of the work day that was more difficult than other times. All problematic due to under/over medication. Flexibility to work around fluctuating symptoms could have been helpful to support me to stay in the workforce longer. I was a self-employed carpenter. I couldn’t go up a ladder or swing a hammer so I was not able to perform work. I couldn’t drive confidently so I had to stop work at 50 and now I’m 61. A regular client wanted to reduce rates to make up for slower performance despite years of good service. I’m still plodding along at home 10 years later. My wife typed this. I can’t use a mobile phone.