My mother has become psychologically imbalanced after a bout of treatment for abdominal and legs pain.she was citiscan, endoscopy , colognoscopy and also PET scan and a eusophogal endoscopy that suggested no malignant muscle swelling.her problems now have increased with her talking anything irrelevant at times and sometimes very relevant that keeps us confused whether she is really mentally imbalanced or only attention seeking.she always complains of constipation and no urination.we are fed up to see her like this.please please advise and suggest medicine