Will reiki help with stress relief, headaches, and relief from autoimmune pain and pressures... ?

Possibly: Reiki practitioners are in many clinics and hospitals. Research is not far along enough to "prove" reiki as an effective therapy, though. Many people with emotional and physical pain use reiki along with standard treatments for their conditions. Find a practitioner who is well-trained and professional in his/her approach. http://www.reiki.org/ massage therapists, rn's & some md's may be found.

Unproven Rx: Studies have failed to establish any benefit from this form of alternative medicine.