You should take proper consultation for your mother .
From above the history her body require whole body general
health checkup.
After the checkup as report come then
Medicine will give for your mother.
In this world only mother can't stopped until her last breath and do hard work daily for her family so it's responsibilities of everyone of family member to help her .
For her problem take proper consultation.
From your history- it's can be related with Lung infection.
Next Steps
Do helath checkup of your mother.