Actually, i had a significantly deviated septum about 5 months ago and i got surgery. It was not a rhinoplasty because insurance doesnt cover cosmetic surgery but it was a septoplasty and a turbinate reduction. Since then i can breathe so much better through my nose. Nasal sprays only work after alot of constant use and then you become dependant on them. I recommend getting surgery. However, I dont think you can attribute not getting high to a deviated septum because there is no connection at all.