Thanks to author and educator Aletheia for compiling this list of:

11 SIGNS YOUR SOUL HAS REINCARNATED MANY TIMES

Aletheia's position is:

…although it is not necessarily 'you' or 'me' who has experienced reincarnation and past lives, the ever-present soulful essence within us has.

I'm not in total agreement with her list. I never considered Empathy and Intuition as strong reincarnation indicators, as many people on the spiritual path have this enhanced sensibility.
I appreciate this list drawing my attention to "feeling older than your age." Never thought about this as a sign, but it's food for thought.
And #11 is worth the investment a few sessions.*

See if any of these resonate with you as possible signs of a Past life echoing into your present incarnation. 

1) Recurring Dreams

2) Out-of-place Memories

3) You Have a Strong Intuition

4) Déjà vu

5) You’re an Empath

6) Precognition

7) Retrocognition

8) You Feel Older Than Your Age Reflects

9) You Have a Great Affinity for Certain Cultures/Time Periods/Environments

10) Unexplainable Fears or Phobias

11) You Feel as Though this Earth Is Not Your Home*

https://lonerwolf.com/awakened-soul-reincarnation/

*Number 11 is interesting to those familiar with Dolores Cannon's later work. This has become an area I’ve been exploring in my personal TimeLine Journeying sessions. More to come in 2023.