Geetar,
WOW! What a myriad of issues you have described. I can only 'speak' from my experience ... and this certainly isn't true for everyone. First and foremost, talk with your doc/neuro/MDS (my disclaimer). about me ... I was dx in 2001 and have had a very slow progression with low meds. I have been VERY fortunate!
The toe curling you describe is most likely dystonia, as you mention. It is a separate (?) but common symptom of people with Parkinson's (pwp). It can cause muscles to constrict in uncomfortable ways - an OVERsymplicification.
The Michael J Fox 'wiggliness' is dyskenesia, often a side effect of Sinemet/Stalevo/levadopa.
Lack of arm swing - particularly on the affected side - is a common symptom of PD and one that docs look for. Lack of facial expression is also a symptom that docs look for. Many with PD have a soft voice and also small hand writing or micrographia.
As you undoubtedly know, there is no definitive test for PD. It becomes a clinical (physical) observation and if you meet X of the Y symptoms, the diagnosis is PD. Everyone's symptoms and response to meds are different.
As to meds ... Mirapex, which you tried, and Requip are dopamine agonists. One or the other is commonly prescribed for newly diagnosed and young folks such as yourself. Sleepiness and nausea are common side effects. I felt nausea for about the first 6 weeks (lost 10 lbs when weighed mid 120's to start) and still get the 'yawns'. (I respect and heed the tired feeling ... especially when driving.) Since then I have done fine with Requip - again, respecting and sometimes compensating (with meds such as Provigil) for the tired feeling if driving, in a classroom environment where need to be alert at all times, etc.
Again, Michael J Fox's 'wiggliness' is a common side effect of Sinemet or Stalevo (which is basically Sinemet and Comtan). Sinemet is the gold standard - works the best. However, the 'cost' is the dyskenesia or 'wiggliness'. Some folks never have dyskenesia or have it to a lesser degree - ya never know. The benefits often last 5 years and then reduce over time. The side effects tend to increase over time. The 'on time' becomes less and the 'off time' tends to increase.
It's all a balancing act - meds vs. side effects - and is totally an individual decision. The most important point is that you educate yourself on your symptoms and treatment and choose the treatment alternative that is best for you and your situation. I commend you for playing such an active role in your treatment alternatives! You are your best advocate!