I am also likely to have many more body aches and brain fog before my period. I am 43 and have been going through menopause for a few years, and I get that way most months even though I rarely still have periods. I have been taking OTC plant estrogen supplements for about 5 months, and they help with the sleeplessness, night sweats, and hot flashes. My supplement has soy, though, which wouldn't work for you, but I've heard of some with wild yam instead of soy.
SLE and Sjogrens
It's hard to take over the world when you sleep 20 hours a day (Get Fuzzy)