Sorry you're struggling too Friendly, holiday blues definitely doesn't help. I often regret not starting ttc sooner but we were just too busy doing other things, if only I'd known it would take so long. 
Mascara, I think I've pretty much done all the investigations other than that the consultant wants me to re-do day 3 bloods as they didn't do all the ones they were meant to, but everything else has come back ok, day 21 bloods, HSG, SA, internal scan (just waiting for AMH blood test results.) The consultant said the next step will be IVF although I don't feel ready for that or like we've been trying long enough. Saying that, both consultants were hopeful that the HSG and a bit of weight gain would give me a boost to conceive naturally. x