I have a 14 year old female cockatiel. She has never been sick. She hasn’t laid any eggs within the past year or so. I noticed about 4 days ago she was breathing heavier. Today I picked her up and under her tail and in her lower belly she has a bulge. I have read about egg binding and I have no clue if this could be it. Or maybe it is just a tumor/growth she is acting normal, eating well..just rapid breathing. What do I do? Any thoughts on egg binding or tumor?