How does the trapped gas in the upper body feel like and how to treat them?

Hello doctor,

I am a 53-year-old female. My height and weight are 5'10 feet and 215 lbs, respectively. I had a slight nauseating feeling, a loose stomach, lots of diarrhea, and gas releasing from both ends. I felt that the gas had moved up into my upper rib cage and caused cramping. The pain has become unbearable even after using the bathroom, farting, and belching. The pain started spreading through the whole rib cage and back between the shoulders. It was excruciating pain that lasted more than three hours. I could not find any comfort even after lying down. When I laid down on my back and put my arms above my head, the pain moved into my armpits. At one point in time, I was in the bathroom with diarrhea and puking in the garbage can because of pain.

Finally, the pain subsided a little. However, it has been almost two full days now, and I still have slight pain in my rib cage. I felt like I was a punching bag. This is the second time I have had the issue. I had a similar episode a month ago, but not this worse. I wanted to know what was happening, whether I had a gas or back pain due to a pinched nerve.