My poor sunny has had a rough week or so , as you guys know she is sick and has a upper respiratory infection. Her right nare is still a little red but other wise from what I can tell she doing a little better. The other day though she was eatting and would let out a scream every other pellet. I thought she may have had a sore on her tongue or something . We switched her to the parakeet size pellets and she has not screamed since but is now constantly bitting on things and rubbing her beak on everything. She is going back on Friday for her follow up so I will have the vet look at it then. Any idea on what might be going on?