@brownstar57 could it be venous Insufficiency that is helped with compression hose? Venous insufficiency would improve lying flat with legs elevated about the heart and worsen with prolonged standing.

Just my 2 cents and hope this helps!

@brownstar57, I'm guessing you have seen multiple specialists. You mentioned your feet turn blue and hurt when standing and they say it's not vascular or arterial just neuropathy and Raynaud's. You might want to have another conversation with them to see if your symptoms might be Secondary Raynaud's. Here's some information from Mayo Clinic:

"Diseases of the blood vessels. These include a buildup of fatty deposits in blood vessels that feed the heart and a disorder in which the blood vessels of the hands and feet become inflamed. A type of high blood pressure that affects the blood vessels of the lungs also may cause secondary Raynaud's."
-- Raynaud's disease: https://www.mayoclinic.org/diseases-conditions/raynauds-disease/symptoms-causes/syc-20363571

Have they suggested any treatment to help?