Discover how to craft a professional resignation letter due to illness. Below is a list of frequently requested Human services forms.Click on the form to complete and print. Customize and Download this "Employee Resignation Letter for Health Reasons". Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Minnesota is an employment "at will" state. A resignation letter due to health and stress lets you inform your employer about your need to step away because of illness or work pressure. This form must be completely filled out.