Your new boss told you that you had to find another job just because you struggle with PTSD? That's not right to begin with. Yet, it sounds like you are still working for the same person 8 months later am I correct?

It sounds like this new boss is not very good at working with others as a boss and is creating stress in your coworkers. It was wrong for this boss to declare that everyone must have PTSD, again that's insensitive. Is there someone in this work place that you and possibly others can talk to?