Diagnosis process

I've been seeing a phycologist for PTSD for around 3 months. She has said from the start that she believes I am on the spectrum and last week completed the AQ and EQ question are with me. I scored 39 on the AQ and 10 on the EQ. 

Apparently this is a high indication. I just wandered what the next steps would be for diagnosis?

I am getting really anxious wandering what comes next. Thanks