So, my own boss went on holidays so he is, let's say, my temporary boss. His behaviour started just before my boss went on holidays and I talked with my boss and him about it. It went well for a week after that talk but went downwards right after.. at some point my panic attacks became worse and I even cried at work on the toilet. I have been bullied before in high school. During my therapy session of an hour I just cried my eyes out about this guy. 

My boss will come Thursday and I will talk to her again. But how do you word this to your boss? Do I file a complaint to HR?