ST. PAUL
Wide receiver Percy Harvin spent last week at a Mayo Clinic in Scottsdale, Ariz., with a migraine specialist.
Harvin, who has missed the past two weeks, said he practiced Wednesday with a "clear mind" and "looked more explosive than when I left," according to what teammates told him.
Harvin is expected to play on Monday night against Chicago.
The migraines were strong two weeks ago, Harvin said, but last week's time in Arizona was more about precaution and learning more about the migraines. He visited Arizona after consulting with interim coach Leslie Frazier and owner Zygi Wilf.
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The specialist detected some of the same triggers of his previous migraines along with "probably a thousand more that we hadn't found," Harvin said.
The specialist, who placed Harvin on new medicine, also treated former Broncos running back Terrell Davis for migraines.
"We covered pretty much every base," said Harvin, who leads the team with 627 receiving yards. "We've got a plan to prevent it, we've got a plan if it comes and we've got a plan if it's real bad."
Harvin has missed significant playing time from migraine-related episodes ever since his collegiate days at Florida.
Doctors told Harvin in August that sleep apnea triggered the migraines, but Harvin said the latest studies showed the apnea to be less significant.
"These last couple of days I've been feeling really good," Harvin said.
Distributed by McClatchy-Tribune Information Services.
