Ok, so the other day when a few chicks started sneezing after I changed their bedding, I figured it was just a normal reaction to the dust stirred up. I still believe this to be true, but after bringing my chicks in after a bit of play time outside today, I noticed my Delaware had started sneezing. Out of curiousity, I picked her up to look at her face and noticed a bit of nasal discharge. It's clear and just a little bit, but now I'm worried. She's very active, curious, and eats and drinks like a horse. She's been rubbing her nose on the shavings now, which in turn seems to make her sneeze more. I'm about to go check on her again to see if it was really discharge or just normal immediately after sneezing. Should I be worried??