Some people recall what are considered to be past-lives;
This was studied by Dr. Ian Stevenson in little-children;
Author of : «20 Cases Suggestive of Reincarnation»

Yes, yes, call them false/implanted memories and what-not if you insist.
Everything can be «de-bunked» with the «alien-implants» explanation;
Basically, Alien-Implant stored those memories, rather than you actually re-incarnating.
Switch out that Alien-Implant Device with another's and all your Memories changes.

Note : The second-paragraph was a pre-emptive alternate-explanation.
Some people really have a serious-aversion to the idea that re-incarnation actually exists.
Main-Stream Religion rejects re-incarnation. Materialism rejects re-incarnation.
Both of them also reject the idea that aliens exist or could even be possible.

Coincidence ? Clearly not. Aliens & Re-Incarnation seem to be the most-rejected phenomena amongst the human-species or at least very high up there on the knee-jerk-auto-rejection «mental-programming» (and conditioning) that «humanity» (inhumanity) has been subjected to for a very long time by now. Anyway, yes, I do possess pre-earth-life-memories, but, not just any kind(s) of pre-earth-life-memories, but, a massive whole entire set of pre-this-universe-life-memories, and, from my origin-vantage-point, this very universe itself exists within a much larger «sphere-of-darkness» for lack of better-description, according to my absolute-earliest pre-this-universe-life-memories prior to apparently «entering» (and thus and ultimately «incarnating») into this particular material-realm/universe.

I have plenty of reason to believe/conclude/expect that I am likely not the only one here with pre-birth memories, although, most people do not seem to remember anything that extends beyond the boundaries of the earth's bio-sphere. For as much as I can add and describe about this, let us save that for some other time and/or day, and, ask the question that is basically this thread's title...?

I have regained some memories.