Susun Weed has a chapter on anxiety/irritability in her book The New Menopausal Years. Apparently a lot of women get panic attacks, anxiety, or wake up with anxiety at night. She says it could be a symptom of the adrenals being stressed during hormonal changes during menopause. One recommendation is keeping a bottle of sage tincture by your bed with a glass of water and sipping a dropperful if you wake up with the jitters or suddenly feel a crash of depression or low spirits.

Here's one source for sage extract:

http://67.199.53.69/sage-liquid-extract-sm-sag.aspx

You can also make a tea from garden sage. It's found in the fresh herb section at supermarkets and sometimes at farmers markets, and you can use that to make a great tea; or you can buy dried garden sage at health food stores. Sage has plant estrogens. Red clover as mentioned above is another good one.

There is a wealth of information from Susun Weed's books and writings online; you can do a google search for links.