Why do I have bumps on both sides of my nose? (photo)

for some reason, Ive developed two lumps on the bridge of my nose. They are on both sides and probably the reason why I've been having post nasal drip and a runny nose. I also find it hard to breathe from my right nostril. I think i may have a deviated septum. What do you guys think?. Ps: I'm also suffering from nasal polyps.