My fiancé has had a hard time since he was a kid but now he can 1-2 weeks without going to the bathroom and it's causing his ammonia levels to get high and has to be hospitalized. We have no understanding or reason as to why this is happening. He just doesn't get the "urge" to go. He is prescribed Lactulose but it makes him crampy and bloated and in a lot of pain. He is given fiber, and now takes magnesium which helped a little, we haved tried all over the counter meds, and Mirilax. I don't know what else to do to make him get the feeling to go. Does anyone have any suggestions as to why he doesn't get bowel movement? When his ammonia levels get high it gets very dangerous and he loses his mind and we don't know what to do to help him before it gets to that point. Please Help .. We have an appointment with his Dr. and his Neurologist soon , so I was hoping to throw in some suggestions to them so maybe we can solve this. He has never had a colonoscopy either.