I would like to add:

I think it would be a good test to soak those feet in epsom salts baths twice a day in luke warm water for about 30minutes.

The magnesium in them gets thru the skin and opens up small blood vessels that may be spasmed shut. Magnesium relaxes muscles and calcium contracts them. So when magnesium is low or can't get to the peripheral parts of the body, circulation appears poor. This test is easy, and inexpensive and can reveal alot for some people.

If this works, then you can move up to a good oral version in time.