I agree with skeksi.

Memories are very confusing as it is. Like skeksi mentioned, people remember things differently for all sorts of reasons. Theres also a theory called barletts reconstruction theory he draws upon which basically means when telling a story, we will never remeember every single detail, so our brain creates details to fill the gaps in order for the story to make sense. Its a bit like a chinese whisper effect especially in rumours and stuff. You and your brother may have slight deviations that further down the line are now clear differences in your own versions of events. This doesnt mean either of you is right or wrong or lying, its just the way you brain works.

I totally know where you're coming from though. Me and my brother have the same problem. It can be really hard and made me feel like I was betrayed by the one person I thought I could rely on. But thesethings really hurt, and everyone reacts differently to pain.

It is very scary having gaps in your memories, trust me I know. It really scares me not being able to remember certain details. Hopefully through your therapy you will slowly and as and when you;re ready uncover some details in order to move on. I understand how this makes it very hard to know whats true and not and who to trust and believe. I just go with my gut, believe what I believe and don't rely too much on other people. But it is hard on your own.

Its atricky situation, and I can only say from my personal experience which is obviously going to be heavily biased. What I did hasn't got me anywhere to be honest, me and my brother scarcely talk, if at all. Like I said its very awkward. So maybe there was a better route to take. I'm sure you'll find out. You're a strong girl and have got through a lot, I have no doubt you'll make it through this.