Lisa, the seat is my brooks. I have one bike, so when it is not outside with me, it is inside on the trainer. I too think I am sitting wrong and causing a nerve thing (technical, I know ). I agree, a week off would do me some good. As for an MRI, I would not choose one ever, but I know my history and doctor well enough to know he will schedule one. I detest the things and I have had enough you would think I would be used to them. I shall try to be good and stay off the trainer and see how I feel next week. Thank you for your suggestions.