I got told I had pmdd (which was wrongly diagnosed, turns out it's something else) but they put me on the pill to help. It's not a very common thing in the UK so I researched it and apparently a lot of docs know about it on the US. Anyway, I found this website useful: http://pmdd.factsforhealth.org/
there's info about treatment on there and there are also some 'real life stories' from women who have PMDD.

Molly