My wife was diagnosed with Parkinson’s 15 years ago. She has tremors on her left side. She has in the last few years had some issues with internal shaking and light tremor in her right leg. She has Orthostatic Hypotension and is treated by a vascular doctor with Midodrine that she takes on a regular basis. She’s had falls and some hallucinations. Her main problem now is Nausea and Vertigo. She had an Endoscopy and treatment for gastroparesis, however nausea continues without much change. Does anyone else have this non-motor symptom as their main issue? Would like to hear any comments or suggestions.