I am 16. I have been having this issue for about 4 months now. It makes me very bloated at times and also I can become very constipated. I’ve seen my doctor a few times and she gave me antibiotics, miralax, and I’ve also been taking fiber. The knot remained there but my constipation got better. I have a bm everyday but I still am experiencing the knot. I also had blood work and an X-ray done that came up completely fine. What could this be??