w, I'm so, so sorry.
You were trying so hard to save Coco. All my hearfelt sympathy to you.
I have seen this scenario before, a dead lizard after vets give an enema. The reason Coco died is because they gave an aggressive treatment that has killed other dragons, some vets just do not know how to do an enema ad it's always very risky. And I doubt they were correct on the gender either. Poor Coco, but at least she's not suffering anymore. I'm sorry that you + your family had to go through this.