I was plagued with that at early sobriety. I was remembering conversations I had with friends when I was in elementary school! Stuff I've kind of forgotten that happened 10+ years ago was all coming back to me all at once like it only happen yesterday. It was definitely overwhelming but that part has seem to calm down now. I guess that's what happens when we give up the drinking. All that stuff that we forgotten from our past comes rushing back in like a two hundred foot tidal wave!