Thanks for the advice, chaps, well received. I'm going to try some different gloves (I had been wearing woollen Thinsulates) and will certainly keep the body warm. Fortunately it's not getting noticeably worse than last year, so I'm hoping to avoid medication for the foreseeable (hate taking pills of any description)
The irony is that it was always my missus with the cold hands and feet in bed, and I was the one able to go out in all weathers and not feel the effects at all, until turning 50.....this getting old lark ain't for the faint-hearted, is it!