Doku was also on the receiving end of late challenge from Wolves defender Yerson Mosquera in Saturday’s 2-0 win over Wolves.
The Colombian was booked for raking his studs down the back of Doku’s leg and no further action was taken by VAR.
Asked if wingers get enough protection from referees, Doku added: “I don’t know in general. That tackle [from Mosquera] was painful. I didn’t ask the referee why he didn’t give another card, I just know that it was painful.
“Knowing myself and my character, I know I am not a diver. If I fall on the ground then it is probably because something happened. In terms of laws, I just know that when I am on the ground I am not diving.
“It is their responsibility to see if it is a yellow or red, a foul or not a foul, that is their job.”
Doku felt he was on the receiving end of a “strong tackle” or “heavy confrontation” at least once in every game, while boss Pep Guardiola also claimed his player was deemed to be diving when referees should instead blow for a foul.
The Belgian forward, 23, added: “Fouls is fine, as long as I don’t get injured. I see it as a compliment, they can’t take the ball. For me it is more about the diving thing. When I don’t get a foul, I am not diving.
“That is sometimes frustrating because I know my character and if I fall on the ground, it is because something happened. Sometimes players tell me more to fall more on the ground. That is more frustrating for sure.”