Is it bad that the tip of my nose is numb and sometimes tingly after hard hit to nose? (Photos)

Numbness can occur and it is usually self limited.  You should have your nose evaluated at the earliest opportunity and certainly within less than a week, by someone who performs rhinoplasty.  This  is uncommon but important, as if you have any blood clots (hematomas) in your nose these need to be drained in a timely fashion as they can lead to a significant problem.

The numbness may be due to swelling from the trauma. You are best seen in person and possibly by your original surgeon who will know your history well.