I think it may be cartilage since it is firm to the touch and doesn't move. Since you are two years after your surgery and since you have relatively thin skin, I do not think there is a significant amount of swelling left in your nose. Please consider bringing these concerns to your rhinoplasty...
Irregularities of the nasal tip that appear several months to years after surgery are typically due to edges of cartilage after rhinoplasty surgery. And most cases, these edges of cartilage are not painful, but they can be. Since your surgeon is uncomfortable taking care of you, consider getting...
The indentation corresponds to your "Soft tissue triangle" which contains no cartilage. Since you have thin nasal skin, and indentation in this area in years after rhinoplasty can occur. If this is bothering you, The area may be permanently filled with a small droplet of Silikon-1000. Hope this...