Yes, I can get very paranoid from PTSD. difficult to combat those thoughts. They happen when I am under great stress and pass when I calm down. the bipolar also gives me paranoia so it is hard to tell the source sometimes. Feeling safe is so important to PTSD sufferers so not feeling safe in your own home is hell. anti-psychotics help and better still distraction and getting out of the place that distresses you to a physical or mental place that feels safe. take care and keep us posted.