Hey, I'm new here and I found this site from searching on google about IBS.I'm really worried about my dad. For the longest time theres always something wrong with him. He has chronic sinitis (like me) and for the past few months, its been something new.He was on pills for his prostate I believe and during that time he started having gas, CONSTANTLY. It was abnormal for him and he kept saying how weird it was. Now for the past 2-3 weeks, hes had pressure/pain in his stomach, a rippling sensation running across his stomach from time to time, feels like he has to have a bowel movement, goes to the bathroom more than usual, he gets tired easily, have a feeling of fullness and also feels bloated.I'm terrified he has colon cancer and him being the negative person he is, thinks for the worst. I keep mentioning IBS but he can't go to the doctor until Tuesday. From what I've said, do you think it can be IBS? Thanks-Mel