With a colostomy, our stool is generally much thicker than those with ileos. I always find that I can feel when my stoma is outputting....it doesn't hurt, but I can feel it. I also almost always feel pressure behind my stoma before I have to fart or have a poop. You get used to it. Like the others have said, since you're healing, you will have pain. Once you're better healed, it should stop.