OP
Yes, I am pretty much rehabilitated but what I used to have:
Important to note that I knew these are not real, I knew monsters don't exist and nobody could have sneaked in the room, but that still didn't help alleviating the extreme fear.
Also, it will be different for everyone. Schizophrenia is pretty much used as a blanket diagnosis when the doc doesn't really know what's going on.
My experiences went away when the sun came up (I only had them in darkness), or when someone touched me forcefully but in a friendly way, like sitting in my lap or hugging me. Unfortunately I saw lonely most of the time, but there was a nurse in the final years who would sometimes hug me and I think that helped me overcome this.