Thank you, Hurdity! Do you know, after I posted this I actually came across a post you wrote in reply to another member about the androgenic side effects of Testosterone and I had a lightbulb moment. You are absolutely, perfectly right of course! As I've had no estrogen to speak of for a while, it could make rather a mess of things at this stage. I also remember what Dancinggirl said a few days ago about your body 'waking up' when you start HRT after a break or not having had any, and I'm thinking this is what all the weirdness is that's going on for me at the moment.
I just need to take stock and slow down a bit I think!!!! xxx