Huh, think I got this "thinking about suicide for 2 weeks & suddenly feeling fine when menstruation starts" a few years ago, but I don't remember if it was actually a recurrent thing, because I only remember that one time that was just super comical because it was so perfectly timed.

Now it's shifted more to like "I dread menstruation and am what-you'd-expect-depressed the week before, and only want to die 2 or 3 days during menstruation and maybe 1 or 2 days before".