@ByGrabtharsHammerWhatASavings , my GP was useless when I tried to explain that I thought my mood issues were hormonally driven and related to my cycle.
In my case, my issues arose when I came off the combined pill. I had had some depression and anxiety in my teens and thought that I grew out of it, but it appears that the ostrogen in the combined pill that I started taking at 18 was actually preventing the monthly extreme mood issues from PMDD.
I had been on the combined contraceptive pill from the ages of 18-30. However, I was told by my GP that I had to change to the progesterone only pill around the time I turned 30 because new research had come out about the risks of developing a stroke if you were on the combined pill and suffered from migraines.
My mood and mental state was dire on the progesterone only pill (unsurprising, as PMDD sufferers get their symptoms due to an unusual reaction to the spike in progesterone in the days or weeks leading up to menstruation). I went off the progesterone only pill, and got some relief (my mood was no longer constantly extreme) but then began to notice the cyclical depression pattern and the link to my menstrual cycle.
I explained the cyclical pattern to my GP, how I had felt much better on the combined pill, and I really felt the problem was hormonal. He ignored this completely and tried to push anti depressants on me. I refused, identified a private clinic in London where the doctors actually did academic research on the hormonal drivers of PMDD, and have been treated by them with HRT ever since. It's expensive, but worth it to have my mood be far more stable with minimal side effects.