I can literally feel the gas moving and causing pain on and off - I know that eating gas producing foods is a bad move, so try to avoid them if I can but difficult when vegan! I have peritoneal endo in utervesical fold, endo in right uterosacral ligament and endo over left ureter. I assume the - sometimes - excruciating pain when I have gas and before opening bowels is related to the uterosacral ligament (I had a colonoscopy so know it's nothing there). Thankfully I have never had this pain whilst out, or in front of anybody as I would not be able to hide it. I'd give it an 8 out of 10!