You have a programming bug in the entering of Medical Expenses. It will not allow you to click Done without getting an error message which cannot be fixed by back button

Please click the Back button on the bottom of the page. Then you should be able to continue your return.

Clicking the back button clears the error but clicking on Done returns the same error. So you’re stuck in a loop

Are you clicking on "Done", or "Done With Medical Expenses"?

I have the same problem.  When I use the back button, it only only clears the screen.  The button says 'done' not 'done with medical expenses' as it is shown on your example.  Please help. 

@Andrea Dwight You may have to click the back button a few times.