Absolutely
To put it simply, what made you? A sperm and and an egg. So you carry within your DNA the vibrational patterns that belonged to your father and mother and your father's mother and father and your mother's father and mother and their fathers and mothers ... all the way back to 'Adam and Eve'.
You carry within your DNA every thought pattern and emotion that is humanly possible. You carry every experience that ever existed in humanity.
To heal at a cellular level can bring up such a mixed bag of emotions and thoughts that it can be quite easy to ignore the amount of mental effort that is required to heal yourself completely in favour of only looking at the conditioning and hurt that you want to heal in your immediate life experience.
Some people get tired of trying to heal the pain they have endured in their life an opt to heal 'past lives', however, past lives are just the tip of the ice-berg in healing.
This subject is quite profound.
It is also a very personal journey for those who wish to undertake it.
Partaking in the journey of Ancestral Healing can catapult you through the layers of healing your ego's version of who you are in this life.
I do not have the answers that you seek in regard to this subject for I am on my own Ancestral healing journey, however, to bring to your attention the fact that this healing exists I believe I have done my part.
There are many avenues for information and you are by no means a non-resourseful person.
To start you off - a lovely site, for further reading is available amongst many others.
http://www.consciousprints.com/id81.htmlNamaste