My years of scavenging through medical
journals and such, I knew one day the Yin/Yang food lists would be important, as I'm not too good at following any rigid plan.
The lower back is not fun to have angry at you! I remembered one time several years ago reading that Prana would facilitate the energy rhythm with the breathing techniques.
So with no coach, self direction only, I began to do breath work. It helped with a couple yoga stretches. The trouble was/is this back issue returns every day! So my diet is the answer. I guess this is why I had that strange craving for horseradish . lol

I'm sharing my story because we are, during pandemic times, trapped indoors more. With less choices of foods and possibly limited movement in fitness. Strangely enough I was becoming 'more' fit again just before this back issue.
Please read these links if you aren't already acquainted with Qi or Yin/Yang energy ~ if of course you are interested!

~ There are many areas, in which discomforts arise, Yin and Yang nutrition practice, can remedy ~

Chinese Medicine http://www.chinesemedicinedoc.com/boulder-acupuncture/diet-chinese-medicine/

Foods and the effects of Ying/Yang foods on you http://www.slideshare.net/mobile/thechinesekitchen/yin-and-yang-food-how-does-it-af fect-you

http://www.lotusrootacupuncture.com/nutritition.html

For a Yang http://www.kenova.org/horseradish.html