We spayed our cat on 11th November 2022 because she was constantly yowling. But even after that she has not stopped yowling and keeps making noises day and night and constantly wishes to go out even after taking it outside. She is almost 2 years old now. The doctor said it might be a case of ovarian  remnant syndrome/residual ovary tissue that stayed even after spaying and that nothing can be done now. But we wish to do anything to treat the cat and free her from yowling. What can be done surgically or medically?