It depends on how the data is set up. One option may be to place the Question Y on the Question X worksheet's level of detail. Then, run another action that shows the Question Y when it is selected on the Question X worksheet.
Hope this helps a bit! If not, maybe you can post the workbook (or sample workbook).
Just an update to say that I have it working. I reworked the data file to include the Yes/No and Details per ID. I had only a small bit of data, so it wasn't too bad to do it manually. However, if there were hundreds of responses, I'm not sure how I would do this. Now when i click on a Yes/No response, the details show in a the view on the dashboard.