Calculating Sick Leave (Absent but no pay)

We changed our policy to if any employee takes a sick day they must return to work with a doctors note. If no note no pay will be given. How do I change my sick leave formula to still subtract a day used with 0 hours sick? This post will not allow me to attach my timesheet to view so below is the formula I use. Thank You

Example of May 2017 Sick Leave Formula (Note: Personals days are combined in with sick day formula)

=+April2017!B5-(AJ5)/8-(AJ6/8)

=April Sick Days remaining-(May total sick days used)/8 hrs. per day-(May total Personal days used)/8.

Attach a sample workbook (not image).

Make sure there is just enough data to demonstrate your need. Include a BEFORE sheet and an AFTER sheet in the workbook if needed to show the process you're trying to complete or automate.

Make sure your desired results are shown, mock them up manually if necessary.

Remember to desensitize the data.

Click on GO ADVANCED and then scroll down to Manage Attachments to open the upload window.

I have attached my workbook (hopefully it uploaded). I have included a Before worksheet (April), and After worksheet (May). Notes are in each worksheet.