No, I don't. I think mind is a product of physical processes occurring in the brain and body, not an attribute of a separate 'spirit' that infuses our bodies during gestation. Therefore, I don't think that there is any possibility that we can be 'the same person inhabiting different bodies.'
Nor do I think that we can inherit individual memories from ancestors.
I think that the experiences you mention are likely akin to dreaming, and are quite possibly influenced by suggestion, and also by wish fulfillment fantasies.
I could be wrong, of course. But that's honestly how it looks to me.