Help with bad health

I am new to owning hissers and recently bought 3 males and one female from a seller at an invert show. The 3 males have been doing fine and settling okay, but the female has been showing some worrying signs. They are all adults but relatively small for hissers. She is missing half an antenna but is otherwise physically okay.

Past 2 days she has been sitting on top of a cork bark log and not really moving. Today I came back from work and found her on her back. Usually I put my finger over her and she grabs on and flips over. Today she didn't do that and was noticeably weaker. Her legs were twitching, her abdomen has been pulsing, like shes breathing heavily and she isn't moving her antenna. I have moved her to a separate smaller tank with better ventilation, damp soil, and a q tip with honey on one end and water on the other. When I put the honey near her mouth she moved her mouth but I dont think she was eating. She is slightly curcled at her back, face down in the dirt and hasnt really moved since. She's in a dark and warm place in her own tank.

Humidity in main tank is between 70-80%. Temp ranges from 22 Celsius normally to 25 when I warm it up.

Any help or advice would be so great 💚🪲