Common Deviated Septum Symptoms

hithere can be functional or cosmetic issues from a deviated septum.Functionally, it can affect the breathing, and that can be manifested as generally restricted breathing, whistling, snoring, breathing from the mouth when sleeping or exercising.visibly/cosmetically, it usually causes asymmetry, the nose can look bent or crooked.

Depending on how bad the deviation is, you might notice no symptoms, or you might have severe difficulty breathing through your nose on one or both sides.
A mild deviation might not have any significant effect on breathing, there might be a very subtle difference in air entry from one side to the other - but keep in mind that a little difference is very normal, and it changes from one side to the other as the day goes along!
A moderate deviation might block just one side and a more severe deviation might block both sides - here the septum can take on an 'S-shape' where the top of the S blocks one side and the bottom blocks the other.
If the airway is narrowed bu a deviated septum, it then means that it is easier to get blocked up when you have a cold etc.
Blockage can also lead to other symptoms such as snoring and difficulty sleeping, and even changes to the voice.

The best way to know if the septum is deviated is to see a rhinoplasty surgeon or ear, nose, and throat specialist for an exam. If the septum is deviated and there are nasal breathing problems, then a septoplasty may be needed to correct this problem. Keep in mind that a deviated septum is not the only cause of nasal obstruction, as nasal valve collapse, enlarged turbinates, fractured nasal bones, or sinusitis could also be causes. 
Soreness of the nose for a few weeks after an injury is common. If the nose is crooked at the top (up between the eyes), then there may be a fracture of the nasal bones, not the septum, and this might require surgery to correct. Also, swelling inside the nose after an injury is common, and this will worsen any nasal obstruction symptoms.
If there is any question about the need for surgery after an injury, it's best to see a rhinoplasty expert like a facial plastic surgeon for a formal evaluation and exam.
All the best,