Are my symptoms ibs?

Hello,

Maybe someone here could make me feel a bit better. I have been back and forth to the doctor in the past two and a half months and he has told me I have ibs. I have constipation, light brown mucus in stool, pain in rib area and lower left abdomen, dry mouth, some blood (which Dr said was due to straining) and I have examined by doctor. He felt the area for tenderness and as I suffer from anxiety he said it was likely ibs and I now take Colofac and fibre drinks everyday. For the first few weeks I felt a lot better but the symptoms seem to have gotten worse. I have a larger amount of mucus in my stool now and it's getting me down. Doctor keeps telling me not to worry, I had a colonoscopy three years ago and as I am only 25 he said I probably don't need another one so soon

btw if it helps I also suffer from anxiety as well and my psych said yes get 2nd third opinions and I take clonezapam and soon I'm getting on Prozac to see if that helps any but we will see...