Just a thought, you could do your own crude necropsy on Raymona. It's understandable if you don't want to, her being such a cherished pet, but you could learn something you wouldn't otherwise find out.
I had two thirteen-week old chicks die from a poisonous caterpillar, and a couple weeks later, a one-year old hen died suddenly. I made myself cut open the third chicken. The operation took all of three minutes. I used a serrated knife and opened her abdominal cavity. It was full of full-size egg yolks, and her liver was three times the size of normal.
Then the ordeal was over. I found what had killed her, and it does help. Not knowing can work your brain over. Closure is a good thing.
I had two thirteen-week old chicks die from a poisonous caterpillar, and a couple weeks later, a one-year old hen died suddenly. I made myself cut open the third chicken. The operation took all of three minutes. I used a serrated knife and opened her abdominal cavity. It was full of full-size egg yolks, and her liver was three times the size of normal.
Then the ordeal was over. I found what had killed her, and it does help. Not knowing can work your brain over. Closure is a good thing.