The frontman, who has netted 22 goals in 42 caps for the Three Lions, admits his lack of involvement is frustrating.
"For the Wales game I wasn't on the bench and then the manager told me I was going to play 45 minutes (against Ghana) and I didn't play again," he told The Independent.
"I felt extremely frustrated. That is only natural and people started saying 'He is going to retire' but I couldn't retire from international football.
"It is an absolute privilege and an honour to be involved. That will always remain the case."