The Causes of Nasal Obstruction Are Multifactorial
Anytime a patient cannot breathe well through the nose it can be due to 2 generally reasons:
1) Narrowing of the nasal passageways
2) Inflammation in the nose secondary to medical problems
To best understand the cause of your nasal obstruction, you need to see a rhinoplasty or nasal expert. They will ask you many question to find out if you have medical issues (allergies, sinusitis) and do a full exam to see if you have a narrow nasal airway. Some causes of a narrowed nasal airway are:
1) Deviate Septum
2) Turbinate Hypertropy
3) Narrowed Nasal Valves
I hope this helps
A reputable ENT or rhinoplasty specialist could address your concerns about your deviated nasal septum.
The base view of your nose shows asymmetry, but the extent of septal deviation would need to be judged on anterior and posterior rhinoscopy which could be performed by an ENT or rhinoplasty specialist.
Hope this helps you.
Severity of a deviated septum
A deviated nasal septum is very common and comes in a variety degrees of severity. Nostril asymmetry and symptoms of congestion or blockage suggest a deviated nasal septum. There isn't a strict criteria as to degree of severity, however, many plastic surgeons may use terms mild, moderate, or severe to convey the severity. If you haven't already, then speak with a rhinoplasty surgeon to help determine appropriate options for you.