IBS or something else?

hi, I'm a 22 year old male that was recently diagnosed with IBS. I've had GI issues for a few years now, but in the last 5-6 months my stool has changed to a lighter yellow brown color (pictured). it has been like that for awhile now every time I go to the bathroom. I have very bad anxiety and unfortunately my mind always goes to the worst (pancreatic cancer, gallbladder problems, etc). I wish this wasn't the case but unfortunately its how my brain works. I just wanted to see what everyone thought. Is this IBS symptoms or potentially something else? My symptoms include the previously mentioned light colored stool, gas, constant burping, floating stools every once in awhile, and sometimes diarrhea. additionally, when i wipe it is always yellow. I have seen the GI doctor and they did blood tests, a fecal calprotectin test, and a CT scan which all came back normal. When I went over the details of my CT scan, it said "visible pancreas is unremarkable" "liver unremarkable" and "gallbladder and stomach are slightly distended." I am unsure of what that means in regards to a diagnosis. The radiologists/doctors said it was normal. Could the CT scan have missed something or is this just IBS symptoms? I hate what my anxiety does to me and more than anything want to be healthy and happy. Unfortunately, my brain does this. I have been getting mental health counseling for the past month or so and was put on a new antidepressant (i went off my last one before Covid hit which in hindsight was a terrible idea). I also started a gluten-free and low FODMAP diet recently which has lessened gas and burping but it still happens just less frequently. I started taking probiotics a few days ago as well. So i am working on things but am terrified that I have something wrong with my upper GI track that is dangerous. I know I am very young for cancer/anything terrible like that, but I am still scared. I would love to hear your experiences/thoughts on the matter. Does this seem like IBS to you? What should I do? Is anybody suffering from the same stuff? I'm just so scared ans anxious about it!!

image