Reese Witherspoon was "deliriously tired" and "cried" when she was "working 14 to 17 hour" days as a single mom .
The Legally Blonde star has opened up about raising her two children - Ava, now 25, and Deacon, 21 - following her split from their father Ryan Phillippe in 2006 while trying to maintain her career in Hollywood and she has confessed it left her feeling totally wiped out.
