@eyalgeva43 @rjmtwit I think you are on to something here. My pelvis does shift position fairly frequently because of some mobility in the SI joints. My typical pattern happens because I have tightness on the left side of my body which pulls the left hip bone (illeum) forward. Usually what I notice first is the left side of my lower back aches. I can also get some left sided pain near the "sit" bone and in working with my physical therapist, she tells me that this does irritate the colon which is descending on the left front side of the abdomen. I just experienced this again in a bigger response that was enough to make me look up symptoms for appendicitis. I found that appendicitis usually has symptoms on the right side, not left. I had sharp radiating pain from the left abdomen up to my chest, was nauseated and couldn't eat without triggering more pain. Even walking around amped up the pain a little bit and passing stool didn't help it. I decided to try to check my pelvis position, and was about ready to go to the emergency room because of the sharp pain.

I stood up and felt where my hip bones were, and the left side was pretty far forward. The solution was to press into the hip flexor muscles that get too tight just inside the hip bone (illeum). I do this by pushing on the tight muscle with a small wedge (Davinci tool) by either laying on it or pressing up on it against a wall or doorway. That took care of everything and solved the pain by getting the pelvis back into a more normal position. I also make sure to stretch everything connected to the pelvis by doing toe touches, straddle positions and lunge positions.

This had been coming on for a week or so, and at first I thought it may have been an intestinal bug. It got progressively worse until I had that sharp radiating pain. I haven't been able to see my physical therapist as often as I need because of insurance changes and I've had to do my best to self treat based on what I have learned from working with my therapist in the past. It is very common that hip flexor muscles get too tight because we sit too much. This is something that she would often check and adjust when I was in her office.