Oh boy, don't I know about the computer addiction!!!!!!!
Ginger is supposed to be warming (I'm not a counselor and hope your condition allows ginger) either in a tea, perhaps juiced into the rice, or when you start having miso soups.
Also ginger can be put into hot water and you can either do a body rub with it, or soak in it (tho that might be iffy, as much too much water, so perhaps just soaking the feet) or do a ginger compress, but that usually needs a second person doing it for you and not sure if you have someone who can help you there.
Now if anyone out there has advice for computer addiction, I too would be open to hearing
Just wondering if there might not be a connection between this post and your other one about the #7 diet and including vegetables, and perhaps if you are ready to include a more balanced diet, your coldness might not continue to be an issue - that's just guessing -
also you might already know, but doesn't hurt to say it again, the #7 diet is just for a short while - you see already how easy it is to also become unbalanced with it.
As far as exercise, what is it you have tried? or have you? There is a macro practice called Do-In - it's a kind of self-shiatsu - I wanted to give a simple explanation but just looked into my Do-In book and realized how complicated it can get - still I feel something is better than nothing, so with a little fear of misleading anyone, giving yourself some pats anywhere and everywhere, may get the circulation moving (or with open hand, or with fingertips or with knuckles - doesn't have to be hard, gentle also works) - it's only one part of the Do-In but you can do it anytime, almost anywhere, and maybe it would help.
But cold can indicate something serious in your condition - is there anyone you can see, either medical doctor or a mb counselor, where you are??
Klara