Had a very positive follow up with my Neurologist today. I was awaiting an appointment at the end of March, but I was on the cancellation list
He looked at my various scans carefully that showed the all clear. Though, he said almost immediately, it's too soon to diagnose FND and more tests are required.
He listened very carefully and read the notes I've made of episodes of amnesia, vertigo, nausea and dizziness, Tinnitus/Hyperacusis and my reflection on past traumatic memories.
So, I'm now awaiting another scan of Temporal Lobe, which having done some quick research all relates to the memory and auditory problems I've been experiencing.