I am soooo sorry to hear that she didn't make it! And it sounds like it was a horrific and heartbreaking thing to watch that happen! I believe impactions can be very difficult to diagnose because they are not always easily felt when palpated for, as I said... I couldn't feel anything with my toad. Unfortunately, by the time they start splaying the legs and their skin becomes clammy... I think it's too late, unless you are able to rush them to an exotic vet and assuming the vet is able to do anything! I was also a wreck after losing Chanchu and then a couple weeks later it had happened to another toad, Gama... but it helped me to make the decision on providing their meals from a feeding dish, which reduced the likelihood that my remaining toads would accidentally ingest substrate material. I have two toads remaining, a male (Speckles) and a female (Shima) and both have adapted quite nicely to feeding from the dish, mostly mealworms, waxworms and roaches (which cannot crawl out). The crickets, however, are not easily kept in a dish and roam around the enclosure which the toads get some exercise hunting them and crickets don't really latch onto the substrate, so they are low risk.

Again... I am very sorry you lost your girl! It's obvious you loved her dearly! I was really hoping that she'd pull through for you and this news saddens me! Much love your way!