A quick way to find out more about the feeling is to approach your parents and explain to them sometimes you feel frustrated in dealing with their questions.
You obviously want to avoid placing blame, just put the facts out for them to react to. Their reaction will tell you almost entirely who is the source of the emotion.
This is my complete amateur opinion and while it's a bit hypocritical for me to suggest such methods when my own relationships aren't perfect. I think it's a very powerful tool though, and it will very quickly show you the truth of your relationship to your parents.
Again, don't take this as any sort of golden law, it's just one possible way of dealing with the problem in a productive way.
"Anarchism is not a romantic fable but the hardheaded realization, based on five thousand years of experience, that we cannot entrust the management of our lives to kings, priests, politicians, generals, and county commissioners."