N.O.
Hi S.,
I am going through exactly the same thing and experience it monthly.
I too get good sleep ane eat right. One day I feel great, and the next grumpy & tired.
The best thing I have come up with that is causing this is the birth control pills I take.
It seems if I don't take the pills for a month, I don't experience it.
So if you're on BC, you might want to try a new brand.
Good Luck