Should I consider ethnic revision rhinoplasty? (photos)

I had rhinoplasty Sept 2015 to fix a large beak shape nose I had. My surgeon said his mission was to give me a nice curved shaped nose. In Dec I felt my nose looked perfect and I had a lovely curve. Now I have noticed my nose has dropped and has a bump. It almost looks back to how it used to look. Surgeon said it takes 18 months to completely heal. However it seems hard to believe that the nose will go back to a curve I had.Should I wait out the 18 months? Should I consider revision rhinoplasty?

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