Sage Karam says he has sought counseling this week from a psychologist to deal with his emotions following the death of Justin Wilson.

Wilson died of a head injury Monday, a day after he was struck in the helmet by a piece of debris from Karam's car. Karam had spun into a wall and the shattered pieces of his car littered Pocono Raceway.

The nosecone bounced down the track and struck Wilson as he became the 12th car to drive through the accident scene.

Karam says he's struggled at night when he finds himself asking too many "what if" questions. He is not racing this weekend, but said it was important for him to attend the IndyCar season finale so he can receive support from the racing community.