Feelings distinct from emotion

I think we can put a definition to emotions and feelings but we use those words interchangeably. I am not entirely convinced. I think emotions and feelings are relatable but at the same time they are different. In reality I think that you can suppress emotions and feelings, and you can present feelings and emotion. Also you can hide feelings and show emotions and vice versa.  I think it depends on the individual. I do not think it is something you can generalize, but at the same time you can standardize it. A doctor can show feelings in terms of empathy, but does not show emotion with the empathy/feelings. The doctor needs to stay professional, therefore the doctor shows that he cares but the doctor can not become to involved and invested with the patient.