"1) Do you think the body could heal without ANY outside intervention-like chiro, massage etc (except herbs, supplements, juicing, glyco's and rest, etc)."
Self-healing depends on the problem but, most "healing" comes from within. A doctor sutures a deep laceration and the body heals the cut. Have the doctor then suture a cut steak and wait to see if the steak heals the cut simply based on the doctor's intervention. The doctor merely intervenes to place the two edges in close proximity in order or the cut to heal itself easier.
"2) The tingling I am now getting on both hands and very recently feet (it is non-stop). I am assuming its from a pinched nerve. Do you think also that could go away without ANY outside intervention?"
Based on your description, it would appear that a nerve is involved in some form. It "could" go away but with no degree of certainty. Just as the laceration could heal,a fractured bone could heal but, I think that people choose intervention for some predicatable certainty.
"3) I have a friend that has seen an upper cervial chiro (www.nucca.org) who adjusts
ONLY the atlas. Have you heard of this?"
Yes. Again, based on the information you provided, I suggest flexion-distraction technique.
"4)Are you in the health field? You are very knowledgeable and I appreciate the clarity and knowledge in your posts."
Yes. Thank you.
"Thank you. In one way this accident has taught me so many things about myself and the kindness of others that would never been possible before. :)"
You are welcome. I believe that anyone truly interested in helping others would probably feel the same way.