Pregnant cats with respiratory issues suffer doubly during/ reacting to weather change. Thunderstorm asthma probably killed Shilla's foetuses and then they purified without her being able to abort them. All from a lack of breath prana.
Tipu had got pregnant at the same time by Simba. She's running a fever now as she tries to get enough prana for herself and her unborn kittens.
Rumex seems to help with yawning. Let's see.