Daisy, you could try incorporating some warming spices like cinnamon into your diet. Now would be a good time to start drinking chai (if you like it), and cooking with curries. Turmeric is supposed to be good for achy joints. You could try a curcumin (found in turmeric) supplement. Also, New Chapter makes a supplement called Zyflamend which I’ve heard works well for joint pain.
Or you could try soaking in a hot bath with some epsom salt. If nothing else, it would warm you up!