Yes, I disappear-I call them blackouts. I was able to control it, had to alter my eating habits and force sleep on myself. It happened gradually sometimes and others really quickly-just ended up somewhere else, not sure how I got there.

B vitamins, exercise and sleep all helped to stop it. I still dissociate, if you want several internet sites have info on combatting it for ex-cult members, who also are now recognized as having ptsd.

One trick-doing left brained activity like word searches and stuff. I only know about that from my cousin's exit counsellor, he recommended it. It works too!
Safe, no side effects.