I'm sorry that you are still having problems - but I am a poor advisor because I am having problems with medication too.
You will probably be shocked at the colour of urine produced!
You seem to be starting on a much higher dose than I did although I can't remember the exact amount for me. My tablets were 50mg - how many - I don't know. It was as my dose increased, I learned the true meaning of '0ff' time.
I also take requip/ropinirole XL 18mg a day and Sinemet CR at night.
I soldier on - some days better than others - but am under orders to re-jig the timing and number of my tablets. Finding a cure must be easier than sorting out these kinds of problems! I think my new regime is aimed at Stalevo 75 seven times a day as opposed to Stalevo 100 five times a day but it has taken several years to arrive at this amount.
Do you have a Parkinson's nurse? Perhaps one of the help-lines on this site might be useful to you.
By the way - timing is crucial. I have found it best to take dose at same times every day, always before, not with, or straight after, food. Apparently, it is absorbed very quickly so getting the tablet stuck in the bowl of porridge you are eating as it reaches your stomach, is not a good idea (I know through personal experience!)
My first tablet of the day followed by a cup of tea 15 minutes later followed by a slice of toast 15 mins after that - and I am no longer a pumpkin but a living, breathing, functioning human being - something I once took for granted!
Hope some of this helps.