This isn't my 1st playthrough of the game. The thing is that she was one of starting slaves and I have her on curratives from the begining (and she still is loosing health). In a previous game I had couple of amputee slaves, some even set to rest+healing drugs in good conditions and they still get sicker until they died.
Will try the Clinic - thanks for that advice I overlooked this feature, hope it works.
EDIT:
All upgrades with a nurse. For all my slaves "cannot benefit from the clinic ", only an aphrodisiac addict can be enrolled for healing.
Need to somehow stop the "muscles steadily atrophy".
Someone might have asked this already, but are you on pregmod or vanilla?
Edit: nvm seems like pregmod
Why is her diet set to "Fatten" instead of "Build muscle"?
Agreed she should be given muscle building.
Did you see this message?
"'Pocket Pussy' Flora failed to report in for a routine inspection, something that rarely occurs under your watch. It doesn't take long to track down the wayward slave. She is found dead in herbed, having died sometime during the night. She has been in very poor health lately, so you knew this was a possibility. 'Pocket Pussy' Flora died at the age of 18. She died far too young."
Okay I've looked through the code and could find nothing relating to muscles and death. The only things affecting death is old age, pregnancy, health and overdosing. The only thing coming close to killing people with a muscle component was if she is a broodmother and is mindbroken. Something else is killing your slaves. The unnaturally healthy score in your image might be from gingering by slave sellers. Put your slave on curatives, rest, set your HG to attend to her and see what works.