The first visit is scary stuff thats for sure, but give it a chance and hopefully a good, trusting relationship will develop.
My PTSD still gives me totally unanounced panic attacks, and as yet I haven't finalised the full list of triggers. But it's a complicated thing that affects us in different ways and seems to improve as we move from victim to survivor, it did for me anyway.
And as for nightmares, who knows what they mean ? But I know where mine come from, those bastards that abused me. Just one of the many fun things I now have to deal with.
And this site is a great help, there's good people here. You will not be alone here Ron.