My mind is fried but I´m going to try to type a decent response. :D
I´m not religious in any way. I´m...
I had a similar episode many years ago, and I think it was one of the most terrible events I ever lived through. I was hospitalized for the hallucinations I had, and it lasted three horrible days. It was visual, auditory and extremely real. I felt the claws and smelled the sweat of unearthly beings. There were snakes and demons and scorpions, and all kinds of other threats. The pain and panic were overwhelming, yet I used all my strength to fight the urge to act in defense.
The episode was the result of an accidental overdose of some medications I had been taking, compounded by crushing stress, dehydration and near sun stroke. But I am certain that what saved me was my recognition somewhere in my mind, that it was psychosis--not reality.
And the only way I could have been sure of that was from prior experience at "talking down" people having "bad trips" from LSD in the 60s. I somehow knew that with medical help for my body, my mind would outlive the chemical hallucinations.
I'd suggest you talk with your doctor about whatever meds you take, and look carefully at your diet and exercise to make sure you are physically OK, then do whatever you need to do to occupy your mind while the episode passes. In many ways, you may be having a "bad trip," worsened by PTSD, and fueled by old dogma.