What people really mean when they say they are “FINE”

If when you ask someone:

How are you?

and they respond with "great!", or "fantastic!" or perhaps even "pretty good" - they probably are "great", "fantastic!" "or "pretty good", but...

If, and when, they respond with:

Fine.

...then it might be beneficial to get clear what fine really stands for. F.I.N.E. stands for:

Freaked out!

Insecure!

Neurotic

Emotional

Glad we has this talk.