You know, Maybell, you've reminded me of a night not so long ago when I had a major bawl-fest. I can't remember what prompted it, and I don't have those very often (anymore), but man did I let it out.
And after that I felt much better. There is something cathartic to just letting it out.
And, on the TMI front: my moods are also very closely related to my cycle. I'll feel like I'm falling back into the pit of despair for a couple of days (thinking to myself, hey, didn't I crawl out of that already??), and then a couple of days later, I'm like, "ohhh, that's why I felt that way."
Just sayin' don't put too much weight into how you feel right now. After all, we are here because we believe that feelings can change, right??