Broncos CB Tracy Porter says he feels healthy, but he's still not cleared to practice

Tracy Porter didn't practice for a second consecutive day and is listed as questionable for Sunday's game. (US Presswire)

Broncos CB Tracy Porter looks fine when he sits at his locker-room stall, answering a battery of questions about his health as cheerfully as possible. But that doesn't mean he'll play Sunday when the Broncos fac his former team, the New Orleans Saints.

"I feel healthy, but there are a lot of people who feel like they're healthy that won't be able to play," said Porter, who was held out of practice for a second consecutive day and is questionable after dealing with light-headedness and a rapid heartbeat -- symptoms that were a precursor to a seizure he suffered in August.

The symptoms recurred Oct. 14, when the Broncos were preparing to fly to San Diego for their Week 6 game with the Chargers. Porter was held off the team flight for what was announced as an "illness." He didn't return to practice until the following Monday (Oct. 21).

When the symptoms returned, Porter feared the worst.

"Ever had a seizure before? It's a pretty scary thought process. Thankfully, I came through," Porter said. "Things are steadily going in a positive direction for me, and I can only hope it continues to go in a positive direction and that I continue to improve."

Porter spent Thursday visiting doctors, who have yet to determine the cause of the symptoms, which isn't necessarily bad.

"That can be a sensitive thing," Porter said. "If they can pinpoint what it is, then it's obviously worse than what it is. They haven't put a finger on the cause of it.

"Though you want to know the cause of it, they say if they can't really pinpoint what caused it, then it's a good thing, and it's not likely you're going to have any more. With them saying that, that takes a little stress off my chest and makes me feel a little bit better."

Porter's examination Thursday revealed no apparent issues, he said.

"Everything looked normal, but they still want to make sure that I'm 100 percent healthy if they put me out there on the field. That's the only thing I can ask for."

Because the cause hasn't been determined, Porter hasn't been prescribed any medication.

"If I have to take it, so be it. It's what I have to do," Porter said. "It's not natural, but it's a part of life. Things happen."

Injury notes: Porter was the only Bronco who didn't practice Friday. Six players are probable: S Mike Adams (knee), CB Chris Harris (ankle), RG Chris Kuper (forearm), TE Jacob Tamme (hip), LB Danny Trevathan (thumb) and WR Matt Willis (hamstring).

For up-to-the-minute Broncos updates, follow Andrew Mason on Twitter at @CBSBroncos and @MaseDenver.