PTSD and Bipolar Disorder

My social worker casually mentioned that PTSD may have been part of what triggered my manic episode (I thought it had been mostly from being overworked). This is because I saw someone from my past before I had the manic episode and it stressed me out greatly since they did a lot of damage to me years ago. I read in the past that being bullied can trigger psychotic behaviour so I wonder if there's a connection. Do you also have PTSD?