It looks as tho I might have found the solution, touch wood. No chilblain problems yet and we've had some very cold weather (for this region in NSW) for over a month. It may be too soon to be sure though, we still have another month or so of winter to come, but it's looking very promising.
The measures I've stuck with every day so far have been:
1. the ginkgo tea - if I had to guess what's made the difference this winter, this would be it,
2. wearing warm clothes all the time, including gloves, beanies, ugg boots, three pairs of socks including those silver metallic-thread arthritis socks,
3. bone broth - 2 or 3 cups each day, with vitamin C powder,
4. whenever my hands feel cold I have a few teaspoons of a mixture of spices I heat up in coconut oil: turmeric, cayenne pepper, hot curry powder, cumin. These all supposedly have anti-inflammatory effects, including the coconut oil.
As well I cut out sugar and white flour from my diet - too pro-inflammatory.
Note: I stopped taking the calcium & vit D supplement when I started having the bone broth – thought it might be too much calcium.
Other strategies: I keep a crock-pot of soup simmering and have cups throughout the day to warm up. That and going for short runs every hour or so, and the hot water bottle – all help to prevent fingers and toes going numb.
I've also given up riding the pushbike at night and have taken up jogging instead, followed by some weights, until winter's over – it was impossible keeping my toes from going numb on the bike.
Hope this info is of help to someone.