Gloomy and sleepy Cockatiel
My cockatiel is 14 years old. Became very friendly recently when we started petting her and letting her come out of cage. Four weeks ago we noticed when we petted her she makes cooing sounds and enjoys the petting at the same time lifts her tail as if she is being stimulated. Then all of a sudden her behaviour changed : sleeps and sits in a same place and not eating anything. We took her to the vet and they gave some medication and antibiotics. They noticed redness in her throat and tongue also. And also gave some medications for her digestive systems. Any way we noticed she laid a single egg after many years. After couple of days she became normal playful and loving .
We started petting her and she is doing the same thing again. She is sitting in her cage and not eating anything. We also noticed she was cooing and making noise as if being stimulated. Is it the same pattern. ? Should we just wait for her to lay eggs ? We do not want to take her to the vet/hospital again.
Please advice