how does your dr. feel about trying an agonist? what you need to ask in addition to sinemet questions is if anyone saw improvement after adding an agonist to sinemet.
doesn't sound like you've exhausted all options on conventional and alternative treatments.
can't advise you on alternatives.

after 6-7 years i get an adequate/predictable response to l-dopa, every 3 hrs in the form of 100mgIR/200mgCR, sometimes more or less depending on how i feel and what i want to do the next few hrs. with me it's like filling up the l-dopa tank still. protein has a major affect so really have to time my meals. always need to take more l-dopa in the afternoon for some reason.

i certainly don't feel normal, can't play team sports and still have some fatigue. i was initially prescribed mirapex, made me sleepy so decided to go with sinemet and have avoided trying the newer extended release agonists.