That sux jinx... I'm pretty sure it's illegal 
too.  If you get a note from your doctor saying 
you can't work, they can't make you- and you may 
be entitled to short term disability.  
Try this link-
http://www.gottrouble.com/legal/employment/family_
medical_leave.html

The FMLA might at least entitle you to time off 
without pay, check your state's labor laws.