verb

be constantly or visibly anxious.

she fretted about the cost of groceries

worry,be anxious,feel uneasy,be distressed,be upset,upset oneself,concern oneself,feel unhappy,agonize,anguish,sorrow,sigh,pine,brood,mope,fuss,make a fuss,complain,grumble,whine,eat one’s heart out,stew,feel peeved

noun

a state of anxiety.

why would anyone get themselves in a fret over something so simple?