Kansas Chiefs running back Jamaal Charles, who was involved in a violent collision with San Diego Chargers cornerback Brandon Flowers while scoring a touchdown but stayed in Sunday’s game, now admits that maybe he was dealing with symptoms of a concussion.

“It definitely hurt,” Charles said during an interview with ESPN Radio on Wednesday. “It’s like, I woke up — I mean, like, a couple plays later I was seeing light bulbs, like, light bulbs around my eyes, and I was trying to catch them. But I was in the game so I was like, ‘All right, let’s get the ball and run again.'”

After Sunday’s game at San Diego, Charles passed off the helmet-to-helmet hit in the second quarter as no big deal.

“Yeah, he put a big hit on me and I’m thankful that I got up healthy,” Charles said after the Chiefs’ 23-20 victory.

Flowers left the game with a concussion, but Charles finished the game.

According to ESPN, Charles on Wednesday went on to describe other symptoms that could be consistent with those of a concussion. He said he had flashbacks to scenes from his childhood. But Charles indicated he was never checked for a concussion because he said he didn’t have one.

“I didn’t have a concussion,” Charles said in the radio interview. “It was definitely a hit that shocked me. I didn’t think I had to go through the concussion protocol and all that because I didn’t want to go through that again. That’s what happened in the playoffs. I was definitely fine. I think I came out pretty good.

“I could definitely play through stuff like that. It wasn’t a concussion. If it was a concussion I wouldn’t remember the plays or remember none of my teammates’ names or remember what sideline to go to. I definitely remember everything. It was just a huge hit.”

Charles paced all rushers with 95 yards and a touchdown on 22 carries against the Chargers. Charles passed Priest Holmes (6,070) as the team’s all-time leading rusher in the second quarter, finishing the day with 6,113 rushing yards.