Just found this on the Parkinson's Disease Foundation website
You can blame PD for everything. It is easy for you — and for your doctors — to blame PD every time that you are not feeling well.
Certain symptoms should never be attributed to PD. Fever, for example, is not a symptom of PD, and usually means an infection. Headache, vision loss, vertigo, loss of sensation, loss of muscle strength and chest pain are not symptoms of PD.
Your doctor should rule out other causes for your symptoms. Sudden-onset symptoms — such as chest pain, shortness of breath, weakness, difficulty with speech, or vertigo — warrant immediate medical attention to rule out a medical emergency.
Full page at http://www.pdf.org/winter10_parkinsons_misconceptions_myths