Glad you brought this up. Some of you may remember that my PD symptons set in massively over night and one of the most striking changes that affected me intimately was that my body odor had suddenly changed to become more "acid" or "sour". That morning I woke up in a sweat and my t-shirt smelled of fear.
Although I didn't know it then, it was the smell of PD, it was an odour I had always intimately related to my granny who had PD, and which I noticed on her cold skin whenever I hugged or kissed her. My poor, sweet, little old granny...there were no PD meds in the 60's/early 70's and she suffered the full scope of symptons unmedicated until they killed her.
Actually, we don't realize how lucky we are after all!