The questions are indeed meaningless and useless. OCD lives of doubt and questions, it will never provide answers. It does not lead anywhere to try to get answers, it only exhausts us. But it is also OCD to check, to compare and to analyze our feelings and reactions to reach some clarity. Thatswhy therapy focuses on living with uncertainty. That seems to only way to calm us down and to stop that part of our brain to destroy ourselves. I do get all that and I am still doubting, questioning, analyzing and thinking. but I try, as often as I can, to break the cycle and to just go on living. Does not work often enough yet.