Prolly does but haven't read anything that supports the idea. The toes of my left leg seem darker than the right. Also my left foot seems colder than my right. My only PD sign is left hand tremor. No foot numbness that I can sense. No tripping while on the treadmill. I had surgery for peroneal nerve entrapment 30 years ago. The leg has been weaker ever since.
Just curious.
Hi. It’s hard to see the difference but you know your body best. Muscle tension created by PD can affect the circulation. Even mental tension, stress and anxiety, can affect the circulation by normal reactions. It’s not unusual with low blood pressure when you have PD which of course affect your balance and more, but you could even have high blood pressure.
So, you know your body best. Ask the doctor if you are worried. And I can recommend going to a foot specialist who can keep your feet in shape and see if there’s any change over time. I guess that your neurologist won’t do that …
Yes, I had those worrying "blue toes syndrome" in my PD affected foot (and hand. to a lesser degree). After thorough examination by a specialist, nothing wrong was detected. He simply but strongly advised me to keep my feet warm, which I did (a pair of comfy socks at night). After 6 month to a year, that symptoms disappeared.
There is a known correlation between Levadopa and aortic valve regurgitation, which could affect overall circulation. What you are describing sounds more like peripheral artery disease. Are you diabetic? Current or former Smoker? Hypertensive? Do you have sleep apnea? Do you have Reynauds? These are all risk factors for PAD. A podiatrist can diagnose this. A vascular surgeon would be an even better diagnostician in my opinion because they usually perform more extensive tests and can treat it. Keep us posted!
Me! I have exactly the same thing going on. My affected side( left), my left foot and left hand are a darker color than my right. The neurologist noticed it, but didn’t comment that it was from PD. She even said she didn’t know why. I have since seen a cardiologist/ vein specialist thinking it was a circulation issue. The ultrasounds were good. My feet are freezing. My toes on my left foot turn purple sometimes, even in the shower when they’re definitely not cold. I wear wool socks to bed. I’ve googled and never came up with a definite reason why. I was at least a little relieved when I saw your post, knowing I’m not the only one
Definitely consult a vascular surgeon. I have something similar and was diagnosed with venous reflux disease. It is a progressive disease and should not be left untreated. Briefly, it is when the valves that keep the blood flowing out of the legs and back to the heart no longer function. Surgery is recommended.
Yes the autonomic nervous system is involved in PD and that includes circlation.
SCENAR - cue more good vibrations in PD 
How fast does PD progress?
PD is relentless 
Drop Foot and Parkinson's - is there a link?
