On that I think you can be assured won't happen. I have not, and no one I've talked to has experienced, or heard of anyone experiencing memory loss. We're only gaining memories, not replacing what we already have.

As to how those memories affect us, that is a different question altogether and one I think can only be answered on an individual basis. I know from my own experience, and from talking with others, that many of us actually feel the emotions that come with the memories. And I think that can change us - our perspectives, our understanding of self.

But like with the things we experience here, now, we still have a choice- in fact I think we have more choice in how we act in regard to our memories because those experiences are separate from this life. The same situations that happened there are not here creating external pressures shaping what we can choose to do with ourselves.