Your ob/gyn is the best sleuth on this one. Given the snapshot of your history, I am reminded that the estrogen/progesterone hormones are stored in body fat and may have possibly just started to run out after four or five months. In the patients I see, the symptoms are usually in response to progesterone dropping too low for some reason. I generally treat with black cohash and vitex, and topical progesterone before trying another pill. But ask your ob/gyn.

I hope this helps, Chris Maloney, Naturopathic Doctor, Portland and Manchester, ME www.maloneymedical.com