I know this sounds wacky but, just as our
menses are tied to the moon's subtle gravitational shift, so are the other fluids in our body
and it riles up the germy little residents of our bodies.
There are about 100 known types of trouble causing worms,microbes,fungi,paramecia,etc. in the western world and doctors can test for about 2 of them definitively.
There are lots of resources online that list healthy foods and habits.