Interested to learn what opinions are held about my experiences.
I don't see as a general rule; and although a few rare exceptions exist, each of those was with a very unusually low dose.
I do have PTSD diagnosed, although awhile the shrinks wanted it to be schizophrenia, it turns out to be PTSD. However I have had no PTSD symptoms since using Ayahuasca in 2013. I do however retain much of the sensitivities of the PTSD state of mind, if I want, but can now turn that off very readily also.
Within my PTSD symptoms, I never had visual hallucinations, but I did have somatic hallucinations. Somatic hallucinations are easier to discern apart from the immediate solid matter experience perhaps. I still have these but it was never out of control. Just as some folks get called "Clairvoyant", there is also "Clairsentience", and that is what I am.
All psychedelics impact upon me profoundly at a very low dose, influencing my dreams through many years thereafter, and thus also influencing my daily reality. Due to my sensitivities, I have oriented into the practice of homeopathy, however I also understand very well, that homeopathic remedies, (made by serial dilution more potent yet diluted until less than one mole of the original substance is present, modern western science is not sensitive to these remedies existing as yet; despite the clear evidence of something being present in homeopathic remedies during psychedelic expriences), do not always work with everybody in the correct direction, and can therefore be dangerous, and thus don't often get included as good science. The point being, in a homeopath's serial dilution, a plant like datura stramonium, which is often enough prescribed in homeopathy, can aid certain persons in their breaking through. I think that years of individualised homeopathic prescription made me more sensitive in many ways; most ways positive.
An indigenous person here once told me that when you have a de ja vu experience, do something you have never done before. And I learned by experience, that can cause the de ja vu to lengthen out each time, become more frequent, until inevitably eventually the de ja vu is overt in how it connects present time to past and future perhaps. So I think a de ja vu can be broken through as well.
Any opinions are acceptable in these matters.