emmajjenkins - I think you need to pop back to your GP adn ask to referred to a different gynaecologist. Explain that she doesn't give you the support you need and, having done some research on reputable site such as MM, you feel you need a second opinion on the treatment you are receiving. If your current treatment is not working well for you, then it needs changing - your gynaecologist should not be dismissing your symptoms nor should she in any way make you feel belittled. I bet she is still quite young - let's hope she gets a tough menopause when it's her time to go through it.
Quality of life is very important. Sadly there is still not enough understanding of how hormones can mess with you body and mind if they are out of balance OR, in the case of menopause, the simple lack of hormones.
Write down all your concerns, symptoms, and questions - - I find at any doctors appointment this can help prompt me when I'm feeling rushed or patronised by the doctor. This evidence can also go into your file so if, in the future, a doctor claims you didn't raise an issue it's there in black and white. It also forces them to address your concerns.
Sex drive might be improved with some testosterone. Maybe you could be given Tibolone (Livial) instead fo Femoston, as this can be very effective as hormone replacement and also help libido - could be well worth asking about?
Keep a diary to show your fluctuations in mood etc. Note things like breast discomfort, poor sleep, aches, pains or anything that you feel is relevant. PMDD is nasty, it can and should be treated appropriately but we are all different so no one treatment will work for every women, so some understanding and flexibility is needed from you specialist. DG x