This is the obstetrical that we all face, what first? Here's my thoughts.

1) if it is in regards to sui or si,, that's first
2) fears about flashbacks
3) how to cope with flashbacks
4) then after a skill set is determined, then deal with the flashbacks.

Having the tools to help in telling about the flashbacks is very helpful.
Your T can tell what is worse, or what is best to be talked about. I can tell that you are fortune telling that the flashbacks could get worse, they could, but they could also decrease by having coping skills to deal with the day, then the flashbacks can be dealt with.
Good luck.