What anti depressants are you taking, some of them like amitryptaline or mirtazapine might improve your sleep. I've been considering mirtazapine for a while now for my poor sleep.

The NHS moves at a glacial rate, I think they hope you will recover while waiting. I reckon you did the right thing going for the job interview, it's easy to start blaming things on PCS when they might have turned out the same anyway. I would make sure you don't get stressed, do some light exercise each day, eat a good diet, take vitamins and wait for your brain to repair which it will do in its own time and no one elses.

Thanks, yeah I'm doing all of those and trying not to think about the future too much.
At the moment I'm just anticipating the referral letter through the post, it's sad how I rush to check the post each day!

I'm on citalopram at the moment, it's the only one I've tried so far