Nose Still Swollen 4 Months After Injury?

I fractured my nose over 4 months ago but the injury did not seem severe and I never visited a doctor. I had all the main symptoms associated with the injury (swelling, dark circles under eyes, difficulty breathing, nose bleeds...etc) but eventually after the first 4 weeks there was significant improvement, except my nose still feels slightly tender and swelling on a regular basis. Should I wait longer in hopes for the injury to heal or visit a doctor in case it might be something more serious