My mother is not feeling well. she doesn't feel like eatinganything, gets fed up of everything and sometimes, she gets scared and gets palpitations. what should i do?

Needs evaluation: Could be depression or anxiety, but could be a heart rhythm problem or infectious disease or many other conditions. She would likely benefit from a medical evaluation of all symptoms, timing of onset, any medications she is on, and other factors.

Vague symptoms: Your mother should see a physician in person. Her symptoms do not point to one system. It could be anything from gastro-intestinal causes to hormonal disorders or depression.

Palpitations: It could be a medical/ psychological issue. Palpitations and decreased appetite are caused by medical illnesses like anemia as well as anxiety and depression can cause similar symptoms. Need to see her physician and get blood work done.