Laughing after rhinoplasty. The nose base and columella hurt when i laugh. Is it possible I have ruined my rhinoplasty results?

So soon after rhinoplasty, you will still have a significant amount of swelling in the base of your nose; therefore, it's normal to feel some discomfort or tightness when smiling or laughing.  I would not pay much attention to small differences in the nostrils as that can occur as a result of positional swelling changes during sleep, etc.  It's highly unlikely that you have caused any harm in your rhinoplasty results.  Contact your surgeon for more re-assurance.

Not to worry!  You've done nothing wrong.  After an open rhinoplasty or even sometimes in a closed procedure with septoplasty combined the smile can be affected, the nose feel tense and tight and the base of the nose and lip just feel "wrong".  This almost always corrects itself in the first 3-4 weeks.  Just give it time and it will all go back to normal in the near future.  Hope that helps!