My mum had a gall stone removed a few years ago, but even bvefore that, she has been having pains in her intestines, basically everytime she needs to go to the toilet, she gets extreme pains all over in her intestines. She says its so painful, it nearly makes her want to throw up. Also after all the pain, she has diarrhea. Everytime she does need the toilet, this is what happens. Pain and then diarrhea. She has seen a doctor, but they its nothing, but im sure there's something wrong when she has this mum pain. Now she has pains in her right knee and im really worried about her. What do you think it might be?