3 - Interesting to know - Wonderful Language English (3)

What do you think about these expressions?

Given below are some words expressing worry in all its shades, arranged in order of severity

I am feeling -  Uncomfortable,  Ill at ease,  Uneasy

I am fretting (expressing worry, annoyance or discontent) -
Anxious
Concerned
Vexed
Apprehensive
Afraid
Bothered
Consternation / constrained
Perturbed
Dismay
Troubled
Worried
Distressed
Anguished
Agonized
Tormented
Despair
Miserable
Dread / dreaded
Grieved
 

Note - Now that you've known these words, you may add any word that has been left out; arrange them in any way in increasing order of severity; and if possible, quote reasons / reference for your so ordering.