Can symptoms crossover from PTSD? In 2007i was diagnosed with PTSD. Bad childhood and when I brought up my "shadow people" (that I only see when its dark) that was the deciding factor on the PTSD. Is it possible that the PTSD can initiate a manic episode and feed it? Sorry I'm a bit random with my thoughts. Random thoughts keep popping into my head so I'm writing the ones down that I feel are worth remembering for my drs appt.