We had Y90. They got close enough to it that we have no visible tumor currently but we are aware that this cancer can return and has a tendency to do so. Wife was very tired and this could be radiation effect. Bowel issues seem to be prevalent with this cancer, either diarrhea or constipation could happen. In my wife’s case loose stools were more common but bother could occur. I know you are taking good care of your husband but please also take care of you. We joined the Cholangiocarcinoma foundation and were assigned a mentor and they are very helpful with insight into this cancer. My wife is a current mentor to others. They are very helpful. Dr Borad at Mayo Scottsdale speaks regularly at their conferences. He specializes in this cancer and we have seen him for recommendations. We are 2.5 years into our journey with this cancer and it’s very complex and usually there are multiple issues happening, some at the same time. Wish you the best of luck and being a good advocate is very hard but know you are in good company. We wish you well and success with a win against this cancer! Best.