I know what you are talking about! As I read your post and your list of meds - I thought, here we are, a kindred spirit! I think that Dyskinwhatsit (My name for it) is controlled by the amount of stalevo you take.
I used to take Stalevo 100 five times a day. Now I take stalevo 75 seven times a day. A smaller dose but more often. I still suffer with 'whatsit' and at times it can be bad, interrupting sleep, but in general, there has been an improvement in how I feel and definitely fewer attacks of dys.
my drug regime is
7am madopar (dispersible)
from 8.00am stalevo 75mg every 2 and a quarter/two and a half hours
7pm requip/ropinirole xl 16mg
bedtime (Usually 1am) sinemet sr
I have had parkinson's for twenty years - diagnosed at 41.
My policy is to keep number and variety of drugs as low as possible and to give new timetables a couple of months to start to work effectively.
I hope you find some method to help your problem. I'm sure visits to the gym are an excellent idea.I am an ardent believer in 'creative' therapy - art, music, dance, writing, crafts etc.
All the best