The sides of my nose deflate and inflate when I breathe in and out. Is this common post rhinoplasty?

Everyone's nose can do this if they breath in hard enough. I wouldn't worry about it unless it is affecting your breathing. Then, that could be another issue. For now, be patient and kind to yourself as your body recovers. If, at 6 months post op, your breathing is affected then schedule an appointment with your surgeon to be assessed in person. Kindly,Kouros Azar

To some extent all of our noses have usually mild inward movement on increased inspiration. Essentially if you breathe hard enough you will always be able to collapse the nose. Some patients have increased problems with this and can lead to problems breathing in particular when breathing more vigorously such as with exercise of during sleep. With some of the techniques in rhinoplasty particularly cosmetic ones, this can sometimes weaken the sidewall of the nose and cause potentially increased problems during breathing. If you don't have a breathing problem, I wouldn't worry about it, if you do, then I would go see your surgeon to be evaluated.

That is more likely a factor of your nose strength and anatomy than of the surgery itself. If you breathe in hard, that can occur in any nose. If you feel breathing restriction when you breathe this is a more important issue and can indicate that you have valve collapse (meaning weak side walls) which, again, may be more to do with your nose than the surgery. Your final result is evident after a year so please be patient and then have a good look at what's going on at that point. Hope that helps!