Thanks for the replies, much appreciated!
There is a lot of “we should/could have” and “maybe” in our heads but unfortunately nothing is going to bring her back. In a way I feel more guilty being on this forum as it feels there was more we could have done, but again... isn’t that what we always have after something happened?!
Her signs for us were not obvious there was something wrong, she basically lost appetite but at the same time she was shedding.. and she usually lost appetite when shedding! She had a piece of old skin stuck on her bum which she ‘ripped’ a little bit and it made her uncomfortable, which was the initial reason for a vet visit. The vet also felt some oval shaped bits inside her (assuming egs), everything else looked healthy! We got some painkiller and cream to take care of her sore bum and some protein powder mixture so we could feed her as she had lost a bit of weight (not a lot though!).
We also provided a toilet sample at the same time and came back she had (minimal) parasites, we got some meds for this as well and provided this.
Basically one week later she started eating again by herself so we didn’t know expect anything... her beard turned orange and she was ‘normal’ again. Until we started seeing discolouration of skin near her nose and bum, more vet trips and meds for her... fungus skin infection..
We didn’t go for an autopsy after she passed away as we decided she has been through enough and did not need her dead body to be ‘handled’. so we don’t know 100% for sure what happened but based on what we know her organs were most likely affected by fungus and by the time we noticed it on the skin I don’t think anyone would have been able to save her.. as i mentioned in the beginning, maybe/what if.. we just didn’t see it....!
The day before she passed she was still running, climbing and head bobbing.. we wondered where she got the energy from... maybe she knew...!