I wish I could answer your question, but my mom has passed away and to be honest I dont remember what kind of tests they ran. She was on meds, so they were pretty sure she had the parkinsons. She would sit at the dinner table and all of a sudden she would start to tip over. Her hands would shake and you could hear how she was struggling to talk. When they took her off the meds for the parkinson, and changed her meds for the bipolar disease, she was a different person.
Glad to hear you have got some relief.