Is it normal to feel as if I have a sinus infection during recovery from septoplasty/turbinoplasty/batten graft?

My surgeon says my nose looks good, very clean. But I feel as if I have a pretty awful sinus infection - not really something I was prone to before the surgery, which was mainly to correct a collapsed nostril and narrow airway. Not much discharge but just a lot of pain, exhaustion, and a very congested feeling. I read somewhere that this feeling is normal during recovery, but I am 6 weeks out at this point and this feeling is not really getting better. In fact some days I think it's worse.