Is it normal to be light headed 4 days after my septoplasty with turbinate? I also have a small “lump” in the back of my throat

I recently had surgery 5 days ago. On the fourth day I started to become dizzy. Well more of a light headed kind of feeling. I am not sure if I attribute this to the dried up blood in my nose. I also realized I have a small lump feeling when I swallow. I am getting my splints removed in two days. Would that fix my problem? Or is the problem associated with my inner ear? I have been using saline for my post op care. Thanks,