11.   The reversal was just the latest in a series of actions that have provided Sydney Games officials with an almost constant headache.

12.   Though he practiced the following two days, Barnum said he continued to experience a constant dull headache and an occasional inability to focus.

13.   Argentina took early control of the actions, especially through Ariel Ortega, a constant headache for Chilean defenders.

14.   Batistuta, captaining his country, was a constant headache for the Paraguayan defense, winning balls in the air with ease and running at the defense.

15.   Europeans who currently work or reside in another EU country face constant headaches of having to fill out tedious renewal forms to ensure they can receive emergency medical care.

16.   He also complained of constant headaches and severe memory loss.

17.   He has had severe fits of pain that interrupted the trial, and complains of constant headaches and dizziness.

18.   He said he now suffers breathing problems, constant headaches and can no longer sleep properly.

19.   Vukovich had been bothered by vision problems for two years and by constant headaches since spring training.

20.   Vukovich has been bothered by vision problems for two years and by constant headaches since spring training.