The general facts; if you are peri, meno, or postmenopausal, there is a decent chance you might be hypothyroid somewhat, more so if you are meno or post. If you get that treated and your TSH 1 or under, and provided your female hormones are in a good range for you (usually), your hair loss will many times correct itself. You may not grow loads and loads of hair back, but most the of time you WILL see it stop coming out so badly, and at least some of it come back in.
Even if you've been Hypo for a while, if you're not getting enough thyroid replacement you're fighting a losing battle. Lots of Drs. tend to undermedicate.
And, of course if you need and want HRT, that works in harmony with the thyroid, too. Bioidentical, of course.