The other day I noticed a small hard lump in my nasal cavity (on the wall between nostrils). It is ~1cm from the bottom of my nose ~0.5cm in diameter. When I looked up into my nose it looked like a hollow circle (sort of wart-ish), and I think there might be a smaller one deeper in my nasal cavity. For some background, I am a 25 year old male with no history of heath issues or allergies.