yes unusually it is unfinished business, trauma that make one remember a past life. I spent many years thinking there was some terrible mistake done to me as I would remember fragments of mine in reccuring bad dream til I was 7 or 8 and then some years later I just happen to be where I use to be in that past life, too it was close in time between death and rebirth.

from what has been shown to me in meditations, guidance and so forth I have had lots of past lives but most are finished with and then don't leave no scar behind, so if one does not remember their past life I go congratulations! means you have left no unfinished business