"It's nothing. It feels like I got punched in the back of the head," Jackson said.
A Blue Jays doctor examined Jackson and said he was OK.
"I didn't fall down and I still knew what was going on," Jackson said. "I had memory of everything that happened before and after."
Lind's liner caromed into foul territory by third base and went for a double.
"The sound of the ball hitting him, it sounded awful," Lind said.
Jackson grabbed at the back of his head and quickly left the mound. Worried teammates rushed to his side, but Jackson walked to the dugout and didn't look woozy.
"That was scary. Some people just don't come back from that," teammate Delmon Young said. "A lot of things can go wrong when you get hit with that velocity in the back of the head. It's a good thing he's all right. He'll be back on the mound in a couple of days."
Last month, Seattle reliever Rafael Soriano was hit in the head by Vladimir Guerrero's line drive in a game against the Angels. Soriano sustained a mild concussion and was finished for the season.
Jackson said he struck above his left eye by a liner when he was 16 years old. He had six stitches and still has a scar from it.
Ted Lilly (14-12) won his fourth straight decision. The left-hander, who is eligible for free agency this offseason, allowed one run and six hits in six innings.
"I expected to do more this year than last," said Lilly, who went 10-11 with a 5.56 ERA last year.
Young had three hits. He also threw out Jason Phillips at the plate on the fly from right field.
Phillips' RBI ground-rule double and Reed Johnson's run-scoring single gave Toronto a 2-0 lead in the second.
Dioner Navarro's RBI single cut the lead to 2-1 in the fourth, but Toronto put the game away in the sixth with the four runs.
- Toronto RF Alex Rios has not had an at-bat in seven games.
- Young has hit in 10 straight games.
- Tampa Bay's Thomas Perez stumbled and fell just before he reached third on Young's single in the third. His teammates chuckled.
- Lilly won for the first time in four starts against Tampa Bay.