I see an acupuncturist regularly for my PCS headaches that pop up every now and again and i love it! My acupuncturist is also a master herbalist and makes herbs tailored specifically to my current condition and what my assessment is. I have seen a huge difference since i started doing alternative medicine and energy work. Acupuncture is considered an energy therapy as they are working to release congested energy within our bodies energy channels (think veins and arteries that carry blood....also there is an energy system throughout our body called meridians and chakras that carry our vital life force called Chi, or qi or prana).
I also do an energy therapy called Healing Touch which works on same principles of removing congested energy and maintaining a healthy flow of energy through the body. These treatments have been the best i have found in my whole life for pain control and completed changed my recovery dramatically once i started them. I am getting certified in Healing Touch currently so i have a large knowledge base on energy work. As an ICU nurse who is very analytical and science driven....i can say with great confidence that this is the missing piece to the puzzle of medicine that science driven minds miss.
Stick with the acupuncture as long as you are seeing results....your body has a lot of healing to do and this is a very important step that medicine cannot do. The results will take time....many treatments sometimes. Just like medicine will take weeks to reach the right blood levels for anti-depressants, so will the effects of acupuncture. Good luck!