<human>: Can you provide a brief rundown of the text in within 3 sentences?

I have known her for almost two years and we have been seeing each other exclusively for 8 months now. Every once in a while she brings up some story that I find a little hard to be true. Heart transplant when she was 13 and no scar. Being shot in the arm yet still no scars. Allergic to peanuts but doesn't react when she  accidentally eats something with peanuts in it.

I know she likes to keep secrets which is fine. She doesn't like anyone knowing her financial situation, etc. 

My history: I had an SO a few years back who lied nonstop. She had all these different phobias that were incredibly uncommon. I confronted her about it and she admitted she made up lies to feel different and unique because she felt inadequate. 

My current SO and I are moving in together soon and these doubts are starting to surface again. In my mind, if she is lying about this kind of stuff then what else is she going to keep from me.

I am going to confront her about this but I feel like I'm just neurotic and its all in my head.
<bot>: I am suspicious that my SO has been making up stories in order to get pitty. I have an ex who did the same thing. I feel like I'm an asshole for doubting her.