Miller was speaking for the first time since leaving Saturday's win against Purdue after suffering a case of whiplash and dizziness following a 37-yard run in the third quarter. He was taken to the hospital after being slammed to the turf, although he was released "symptom free" later that evening.
Miller stressed Wednesday that he's dealing with nothing more than a sore neck.
The sophomore Heisman Trophy candidate made it clear after practice that he's expecting to play Saturday in a crucial Big Ten Leaders Division showdown at Penn State.
Miller also said he anticipates doing all the things that have made him and the unbeaten Buckeyes so dangerous during their perfect start to the season.
"I'm good, I'm good, I'm all good," Miller said. "Just a little bit sore (in the neck), but that's about it. I'd say I'm full go."
Miller has taken his share of practice reps the past two days, though the Buckeyes still are planning to have two quarterbacks prepared to go against the Nittany Lions.
Kenny Guiton, who came off the bench to lead a late comeback against Purdue, also will be ready to play if needed.
"(Miller) is doing good, full-speed practices really yesterday and today," Ohio State coach Urban Meyer said. "He has a sore neck, but today was much better. He lifted and he's good to go.
"At this point, it's Wednesday after practice, we're good to go."