Late August isn't good enough. Every minute you are on sinemet you are teaching your brain it ultimately can quit its job of producing its own dopamine because the drug will now do the job for it. This process is called feedback inhibition. If u didn't already have pd, you soon will after a while on this drug. And further, you risk developing the side effect of dyskinesia - excess movement. Bigger movement than tremors.

Much as you yearn for a diagnosis, you don't want to end up creating what it is you think you are discovering. You may simply be under a lot of stress and in my experience that can trigger a lot of physical stuff that vanishes with lifestyle changes, more sleep, exercise and fresh food. Also, get your b12 levels checked.