Sure I have colon cancer but dr says likely ibs. Having colonoscopy in 3 weeks. Symptoms are chronic diarreah. Pain. Gas. Weight loss which I gain back.

Patience . I hope you are wrong and there is no cancer but even if so, 3 weeks would not affect the outcome. I know waiting can be hard but try to gather all your optimism during the waiting period. Again, i truly hope there is no cancer there.