Trouble breathing and constant sniffling

[Emily_S_123]

For about four months now I have been constantly sniffling. The problem with this is that my nose is dry and I am just sniffing up air. It seems to be getting worse too. I have also started to experience heavy breathing. The breathing trouble and sniffling occurs more so when I am moving around. I have been allergy tested and found that allergies is not the issue. I also had a CT scan done on my sinus area and was told it was clear. I would like to mention that I had deviated septum surgery about five years ago.
These issues are really starting to affect my quality of life, and feel I feel hopeless. Any suggestions or ideas would be greatly appreciated.