Have you always felt this way with them? If it is a fairly recent development, I would suggest it is a typical sign of a young person becoming an independent adult - it happens to everyone to some degree at some stage between 12 and, say, 20. Parents can find this understandably, if annoyingly, hard to accept and understand, and in their upset and confusion inadvertently become a right old pain in the whatsit. If you can help them come to terms with these changes and modify their behaviour (along the lines of the excellent suggestions above) so much the better for your long-term relationship with them.