Jimmy Walker has been diagnosed with Lyme disease.
The 2016 PGA Championship winner made the revelation to reporters at the Valero Texas Open on Wednesday.
Walker said he found out he tested positive for the condition two weeks ago, on the Wednesday before The Masters began in Augusta, Ga.
"I haven't felt real good since Thanksgiving, I'm holding strong to that," he said. "How long I've had it, I don't know, but I know I haven't felt great since about then, so I've been talking to some doctors trying to figure out the course of action to take and (will) get on some meds to get it (to) go in the right direction."
The 38-year-old was originally diagnosed with mononucleosis, before he discovered it was in fact Lyme disease.
"We've been talking to a lot of doctors and I think that (Lyme) was more of what was going on as opposed to the mono. A lot of the doctors think that (mono) wasn't really anything that was going on," Walker said.
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