Hi,
You do not have to tell your employer anything.


If you want the employer to make reasonable accomodations for you, and your employer has more than 15 employees, then you can. The employer will have to follow the rules spelled out in the Americans with Disabilities Act:
http://www.ada.gov/cguide.htm#anchor62335



But as Di has explained, employers find ways to get around the law, and do discriminate.


I have not told my employer.

M.