Palestinian youths clash with Israeli soldiers

What does the phrase 'I'm fine' typically convey about a person's emotional state?

In what situations might someone say 'I'm fine' even if they are not feeling well?

How can the phrase 'I'm fine' be interpreted differently based on tone and context?

What are some alternative phrases that convey a similar meaning to 'I'm fine'?

Why might someone choose to respond with 'I'm fine' instead of expressing their true feelings?