R.H.
I second the progesterone cream. It's over-the-counter, safer than taking synthetic hormone (progestin), and relatively inexpensive to boot. I would have seen a doc, but ended up not needing to after beginning the progesterone cream.
Some tips:
The progesterone cream needs to be USP, in an opaque container, and allows for regular dosing without exposing the remaining cream to the air (pump is best).
HTH!