What is the exact change in hormones that cause anxiety before women get their periods?

I heard that a drop in progesterone causes the insomnia that a lot of women get before they begin menstruation, but what hormone is responsible for causing the anxiety before menstruation? I am looking for a particular hormone. Not a remedy, or anything like that. What is the hormone responsible for anxiety and PMS.

That too is due to a drop in progesterone, since progesterone has a calming effect.

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