Kureha,
Glad it helped some. I understand you wanting to be 100 percent sure.
I like that you are keeping and open mind about maybe taking meds. While I understand you may be nervous about it, perhaps it's because you haven't taken them before so there is the whole fear of the unknown as well.
Your psychologist sounds great, and if you were to start taking them, she would continue to do things to the best of your interest. She would keep track of how you are doing, and from what you have said about her, I know that you can trust her for that.
If anything, you try the med for a few weeks and if you don't feel better, then you talk with your psychologist about it, and think of a plan B.
Can you tell me more about what you worry about, or whats going on and how you feel about it. Can you remember how you felt before you started seeing the camera's? Or do you remember what was going on in your life before you started seeing them?