Just reading your blog I was in the same position about 10 months ago. I was 49 my wife said I was not my normal self slowing down struggling with some tasks and very tired.
Luckily for me I was on BUPA through work, and quickly diagnosed and put on Ropinerol.
I didn't get to see my PD nurse until January this year she told me I should have had two months off work when I began medication as it knocks you about so much. Too late to tell me after 6 months, the first few weeks were awful.
Now 10 months down the road I have seen my neurologist again she has added some Madopar to my medication just to give me a boost.
My PD nurse has got me physio in the swimming pool and upper limb physio with the OTs I have been visited by occupational health it all seems to be coming together now.
What I am trying to say is in my experience nothing seemed to happen for a long time but when you get in the system a lot can happen very quickly.
I'll admit that it can get you down and we all have off days but life goes on one way or another.