try taking some bioidentical estrogen and progesterone when you feel bad. if you need more info, let me know. it might be a drop in hormones. the only way to tell is when you are feeling really bad, go intp the dr and have him run a hormone panel. it wouldn't hurt to do a full metabolic panel, as well.
Torrie
PS. good luck with the black cohosh, tried it for a few weeks and couldn't get it to do a thing. but i have severe hormone loss, so maybe it doesn't work much for that.