The crooked nose look does not help diagnose anything unless there's a very specific finding in regards to your issues. And there was, as you were told.
I just don't understand, why you were not given those details and why you did not ask for an explanation yourself.
The answer likely lies within this.
We do not have the privilege of this information, nor the accompanying MRI report, so I would strongly suggest you get in touch with your PCP again, regarding this.
After all you need to exercise your patient rights.
I personally detest this "medical" culture of secrecy
or failure to inform patients on important matters.
My suspicion is that you have some sinus/nasal structural abnormality which may result in frequent or chronic sinus infections.
Also look into hydration issues, as you may have a waste elimination issue (nitrogen/ammonia), if dehydrated.