Ibs or ovarian cancer pelvic & back pain pee allot gas indigestion very very bad bloating doctor did no tests gave me fibre and said ibs i'm 23?

You mean obesity ?: At 23 ovarian cancer is rare , if that is in your mind go for follow up , request for pelvic sonogram , mean while don't eat junk food , cut calories , eat healthy diet , and join a gym , and exercises regularly to loose 1 lb of fat you need to burn 3500 cal now calculate how much fat you want to burn. Mile brisk walk you spent only 100 cal.