Duval felt sick prior to Friday's second round of the Ford Championship at Doral. He said the room was spinning and he felt dizziness but went out and shot an 80, his worst score on tour since an 83 in the opening round of the 1996 event at Doral.
'I felt terrible,' said Duval, who missed the 36-hole cut on Friday. 'I was wobbly, lightheaded. It was a weird feeling.'
Duval stayed overnight at Doral because he was unable to drive his car to the airport. He went to the doctor Saturday morning and is scheduled for a hearing test before he can return to his home in Ponte Vedra Beach, Fla.
'I just have to let it run its course,' Duval said. 'The next four or five days, I can't drive a car, but I can hit balls and things like that.'
Duval is mired in the worst slump of his career and part of it has been due to injuries. In 2000, he missed 10 weeks of action with a back injury and last year, he hurt his shoulder in a snowboarding accident.
So far in 2003, Duval has missed the cut in three out of four stroke-play tournaments on the PGA Tour. He tied for 42nd at the Nissan Open but lost in the first round of the WGC-Accenture Match Play Championship the following week.
'It's just one thing after another,' Duval said. 'My golf will be better, and I'll play better. I'm in a bad rut, but it will all change. I'm still playing golf for a living, so things aren't so bad. I'm not making much of a living at it, at least on the course.'
This is an important stretch of golf on tour, beginning with the Florida swing. The Players Championship is at the end of the month and The Masters is two weeks after that.
Duval does not believe he will miss either tournament.
Positional vertigo is an inner ear problem that causes brief, violent bouts of dizziness when the head is turned.