Yes dang gui can be your best friend or it can be used quite improperly.
Moxa yes do it, it works wonders for your condition! Of courseI am suggesting with out seeing your tongue or taking your pulse but I am leaning more toward Kidney yang herbs but don't don't try it on your own because some herbs are conflicting or cancel each other* ie don't try and take too many things!( maybe two immortals from golden flower)Here are symptoms of Kid yang def. soreness and cold in low back,cold knees and extremeties,aversion to cold, weak legsand knees, bright white complexion,low libido, lassitude, profuse and clear urination, apathy, infertility, leg edema, poor appetite, loose stools
you may have some of these signs.
your practitioner should be able to tell!
also another suggestion deep relaxtion and stress elimination, either thru meditation or self hynosis
I love the hemisync cd's from the monroe institute they have a lot to choose from
hemisync.com ( I think) this is not a commercial because you can use any relaxation cd or tape, also hypnotherapy helps a great deal