Scary. But how to tell the difference between muscle pain caused by the PD and muscle pain as a result of sinemet?

also, what can one do-there is no real alternative to levodopa that we know of. Mucuna, tried it, too inconsistent and unreliable (example: have an important meeting, need to be sure meds are working...not so sure if only using mucuna). Also over several days mucuna caused some major stomach aches. So what to do when the rx is the only one out there (and here I lump all Pd drugs in together, because many of them either have levodopa in them, or agents that act on levodopa). Suggestions?