Where are you living?
It can be related to pollution and stress and anxiety
Steam inhalation helps
Honey and lemon juice and water helps to build immunity
Never mind even if blood
sugar levels are normal or on higher side.
You can give her syrup or tablet phenargan twice a day
Light diet which doesn't cause distention
Less salt sugar and fats.
Next Steps
get her heart checked for basics like echo cardiography
breathlessness can be due to heart or lungs or both
Health Tips
restful life will help her. no heavy exercises or extra work
yoga for stretching and strength of muscles
meditation is good
review with reports