[Andy]

I would say stop taking the herbs for a week or so and let things clear your system. Start again taking a low dose and work your way up. It sounds similar to the pains I get if I use to much progesterone or take too much phyto-estrogens into my system. Keep in mind that certain things like coffee can effect your dosages. If I remember correctly, coffee is a phyto-estrogen.

Maybe keep a diary of what you eat and take and don't take. Maybe it will give you an idea of what may be causing it. Knowing you hormone levels could help you as well.

Just a few suggestions. Good luck.