So, the memory is so vivid that you believe it to be real? Oh wait, the fact that you are even doubting this could indicate anxiety as the source rather than hallucination, right? Time to talk with a therapist to get some clarity.

I have OCD too but it is in remission. When I hear a thought with the O-voice, I tell it thank you, and now I'd like to hear from the other parts of my brain too. I leaned that technique through meditation...I could actually follow my breath, which dials down the chatter and rests that part of my brain, while I go to a whole other feeling of peace all within my own person. Powerful stuff. I've never been the same since! Ha

I don't fight with my brain anymore. I honor it and understand the chemistry behind what it is doing to keep me alive...I see it as a fantastic organ. And how the brain works with the vagus nerve is fascinating. There are breathing exercises that can reset the autonomic nervous system from sympathetic (the rev up part) to parasympathetic (the slow down part), which work for me. Like I said, powerful yet simple to learn.

Hoping my experience helps you in knowing that you are not crazy, whatever that means. Anxiety (through self-talk or otherwise) affects our electrical and chemical brain, but that can be worked with given some techniques. Acceptance of what is going on is hugely helpful and after than the 'tools' for better living come your way and life becomes manageable in a customized way.