I am so sorry that I have no answers to your questions, but I wanted to express my sympathy for the predicament you find yourself in through no fault of your own. You must feel so angry. It's also startling that ALL your symptoms were CAUSED by Sinemet. That raises so many questions in my mind.....My own consultant said he felt that PD meds were like the" King's Clothing". (Do you have that expression in US?) I'm beginning to see why.
I do wish you all the best and that you get answers for your questions. Ladybird.