I’m 54 years old. Female. Two years ago I was diagnosed with Colon cancer. I’ve since had surgery. I’ve had chemotherapy and radiation. The last CT scan showed no sign of cancer. My problem now is that I have so much gas. I take 125mg of semithicone when it getsd bad and sometimes that doesn’t help. Could there be another underlying condition that I don’t know about or is this common after a bowel resection?