C.V.
E,
I was getting terrible premenstrual migraines. I cut caffeine completely out and they stopped. I haven't had another.
I've been able to drink the equivalent of 1 cup of coffee per day and not have migraines (tea, coffee, cola, whatever). I could even have two cups every so often (just not every day...maybe once a week).
Caffeine basically erodes away the progesterone levels in your body over time. Progesterone levels naturally drop throughout the month, but caffeine causes them to drop even more, causing an imbalance in your estrogen/progesterone ratios. This causes improper fluid retention at a cellular level, which can cause headaches, body aches, joint pain, cramps, back pain....all the PMS stuff.
Cutting caffeine really does help to balance out your hormones. I totally suggest it.
Like I said when I cut caffeine entirely: If it means no more migraines, I'll never touch coffee again. Luckily, with some time and effort, I've figured out that I can still have a little bit. :-)