Dollface it's completely understandable to feel that way. Do you have a fail-safe thing that cheers you up I watch Christmas films If you do, indulge in it.
Also, it does feel like a lot of work to get the tests / treatment underway but think big - if it works and you have a baby, will you care about million test? That's what I try and tell myself anyway.
battenberg I don't blame you for going privately. If I could afford to, I would have considered it I think.
clarelily welcome! Is nexplanon the implant? I never had that but I tried several varieties of the pill, then the depo injection and eventually the coil. When I stopped each one to try something else, I had a hormonal explosion like you described. My GP said it was my body trying to balance out hormones and not knowing what it was doing.
For me, since ttc, it calmed down after about 3-4 months and I've learned how my body works on its own.
Also, I can't believe your gp told you you'll never convince. That is not what pcos means! There are a lot of things to try before a doctor can tell you that! I'm so annoyed on your behalf 
bananafish your current project sounds like a room 101 situation. How are you coping with it?
ponty have you had any tests to confirm if you've ovulated or not? I have my fingers crossed for you anyway
feefee Welcome to the thread. I hope you don't mind me asking - are you overweight? I'm asking as metformin can help shorten cycles and help lose weight, which in turn can kick start ovulation in overweight women. I have been on it for a while now, and my cycles went from 100+ days to regular 40 day cycles on it. I'm not sure if it helps if you're a lean pcoser though
I would definitely ask for a gynae referral, the sooner you're on the list the better.
HSG is decided by the consultant, depending on the issues / treatment plan. Most Drs ask for them just to rule out tube blockages etc before they prescribe clomid as no point in taking meds to make you ovulate of the egg can't get out of the ovary! I had one, it wasn't pleasant but was the last test before being given clomid.
No periods can be a problem. As Ponty said, see if you can get a provera prescription to help. I had something similar a few weeks ago when my cycles just randomly lengthened and I needed AF to be able to take Clomid.
I would also prepare your DH to have SA at least twice. My dr asked for that to check that the first result wasn't a fluke.
So me - I'm on cd6 (technically AF started 11pm on Sunday but I took day 1 as Monday). I had day 3 bloods done as per the lovely consultant I saw last time, then started the 150mg dose of clomid.
I'm back to it 100% now - metformin regularly because I went through a stage of forgetting it and seven seas trying to get pregnant, DH is on his supplements, and we're both back on slimming world. I think hitting the 2 year mark of ttc has pushed something in me.
Also, I found out a friend has been ttc for just under a year (no pcos etc) so we've been trying to support each other and its highlighted to me how much I want this and how ready I am!
Fingers crossed for more BFPs on this thread!