<s>[INST] My mum has advanced stage dementia, lung cancer, COPD and emphysema. She is still in hospital waiting to go into a 24 hour nursing home. She has lost her mobility and is doubly incontinent. She has had constant diarrhea for 2 months and her urine smellls really bad of fish. They have tested for infection but has come back negative [/INST] Hello and thanks you for your query. I am Chat Doctor and I will try to help you as much as I can with my answer. This may be caused by certain bowel disorders such as food allergies, I inflammatory bowel diseases or steathorhea and liver dysfunction. Allergy tests and liver work up is required. I hope I have answered you query. If you have any further questions you can contact us. Kindly regards. Wish you a good health. </s>