I'm so touched by all your messages, thanks guys, it means a lot 
This is going to be a bit of a looong me me me update, sorry. Makes me feel embarrassingly self concious but it really helps to write it all down and you did ask :) I'm glad to report to feeling a bit more chipper after a hard couple of days. I saw the loveliest consultant today in contrast to hardcore GP who really knocked the wind out of me. Grrr to Gestapo like GP's- that lady could properly do some work on her delivery.
Well, onwards and upwards. I was rather taken aback by getting dildo cammed straight off at my apt tonight 
but no messing and all that. The good news is everything looks healthy, just my endometrium is thin - ie not about to bleed anytime soon and my ovaries are both very quiet.
Dr basically said there are lots of things that may cause this and it could still be temporary or pre, though the very high FSH does lend itself to a diagnosis of ovarian failure and being post menopause. But she was really clear that whatever happens I still have a healthy uterus and therefore options which was amazingly reassuring to hear.
So, more bloods to try and find out where we are in the whole broken ovary saga and the cause - FSH, LH, prolactin, thyroid, DHEA? to name but a few and a chromosome test. Diagnosis is important for treatment as I'll need some sort of HRT to balance what's missing which feels a bit weird event to write...
At the same time DH is booked in for his jizz test next week and now he's in the system, Gestapo GP will make us an apt at the fertility clinic. The everos efficient consultant I saw today is therefore making me a next apt with a doctor who works in both the NHS fertility clinic and the private hospital. Like you Cats (nice name change by the way) some of the investigations for infertility can be covered by the amenorrhoea which will help us get going faster.
So, all happening fast and furious. It feels good to be in the system and progressing things now that it feels like every day counts. A lot can happen in a bloody week hey but at least there's still hope of some kind, whatever that might end up looking like.
Congrats if you made it thus far. I've hogged the thread far too long so will hop to claim that onesie and wine thanks Merkin. Crap, this emotional turmoil is exhausting.