I recently have experienced the same thing, wondering if it were my kidneys, appendix or gallstones. Have had massive abdominal surgery 2009. After reading lots of possibilities, I think it could be related to gastric foods, or stress. My pain seems to have gone away on its own in my lower and upper right side for about a month now. As far as CBD, THC both go into blood stream after passing through the liver, unless it is a tincture. Even then the amount not gone directly into your system under tongue, will process through liver. Liver toxicity from many drugs overloads the liver. CBD THC also stays in the body a long time. Once off other drugs go low and slow with even tinctures at any ratio, they will work at small doses if they will work for you at all. Let your body heal naturally, drink water get sun exercise.