Judy,
So sorry to hear that you are in severe, chronic pain. I think that when that is the case it is important to focus on calming your nervous system. Chronic pain is perceived by the brain as a threat, which generates stress hormones, which creates more tension and pain. So trying to break that cycle is of primary importance. The technique that worked well for me is what is called diaphragmatic breathing (belly breathing), and there is research to support its effectiveness. If you google it, you will find the technique explained.
The other technique that helped me a lot when I was in a great deal of pain is to work on developing a different perception of, or relationship, with your pain. This involves a form of mindfulness meditation where instead of resisting the pain and judging it as harmful, you enter it, notice it, be with it, allow it--without judgement. It takes practice. Here is a link to a free guided meditation that uses this technique. It is the one titled, Soften, Soothe, and Allow:
http://www.mindfulselfcompassion.org/meditations_downloads.php
I was able to get rid of pain after doing this meditation for 20 minutes (sometimes 40 min) and it was like a miracle. As Eckhart Tolle says "what we resist persists", so finding a place where one can accept and allow pain can help dissipate it--though I know it seems paradoxical.
Wishing you the best