Curiosity kills cats, so I looked you up before your pussy suffered. You asked if any of what you described made sense. I'm sure it does to a lot of people on here.
This is based on my experiences and I compare to yours in some aspects. By the way I have to behave on here, so my dictionary of naughty words has been binned and more polite comparisons drawn. There are no naughty words only ** so you can make your own up. If it's good enough for the Daily Mail it's good enough for me.
Being diagnosed.......... I was tested for everything known about man, pigs and horses before I got a very street wise doc who had a very clever friend. So problems arose from medication. I struggled at first.
I read the list of side effects posted by the NHS. I crossed my fingers and hoped for the increase in libido and hyper sexuality. My wife trembled at bed times waiting for the onset......unfortunately I got the same as you......the problem of being unable to socialise like I used to.............
i.e crowded pubs did me 'ead in. I am working hard on this problem and making progress.
Head like a snow globe.........I used to wake at about 3.00 am and sit on the edge of the bed like Alice in Wonderland........excuse this next bit........I wondered where the f**k I was. Having been a space cadet most of my life, this compounded the issue. My PD nurse (she's a gem.....very Grrrrrr! rated and clever with it) sorted this out with a nightly dose of slow release co beneldopa. I now sleep fine. My wife has removed the chastity belt and breathed a sigh of relief.
Dancing......have you ever seen someone trying to dance in quick setting concrete.......I gave it up as a bad job. This was before diagnosis and I wondered what was going on, I used to be as fit as a butchers dog. Swimming also had to go.
Stiffness.....again I apologise for the next bit.......If my pr**k was a stiff as my joints I would be a very happy man. My arms ache in all moving joints. I take pain killers with my Madopar, which makes it tolerable, but still painful if I try to lift anything.
I thought that medication made things better. I am told it does in the brain department but has unfortunate side effects.
I am 63 and pre medication was reasonably active bar for old wounds incurred via ripping myself to bits in heavy engineering.
The conclusion I have reached is to stick two fingers up at PD and reorganise my life. If it's beyond me I send my wife off with her mates. I concentrate on the things I can do.