Worry

Synonyms: Fret, be concerned, agonize, dwell on, get in a panic, get worked up, get overwrought, get stressed, get in a state, get in a sweat, get steamed up, stew, torment oneself, alarming, worrisome, perturbing, taxing, niggling, troublesome, harassing, harrowing, distressing, disquieting, traumatic, awkward, tricky, problematic, scary, sticky, anxious-making, be worried, be anxious, brood, panic, lose sleep, get in a fluster, be on tenterhooks, get in a flap, get in a tizz/tizzy, sweat, get in a lather, torture oneself, be in a blue funk, concerning, daunting, trying, vexatious, bothersome, unsettling, harrying, nerve-racking, dismaying, upsetting, unpleasant, difficult, thorny, grave, hairy, and prickly.

Synonyms: Trouble, cause anxiety, disturb, upset, disquiet, fret, unsettle, frighten, scare, flurry, strain, harass, plague, besiege, vex, weigh heavily on one's mind, oppress, be a great weight on, gnaw at, give someone a hard time, faze, bug, do someone's head in, mess with someone's head, bother, make anxious, distress, concern, discompose, agitate, perturb, alarm, fluster, stress, tax, torment, bedevil, irk, prey on one's mind, weigh down, burden, lie heavy on, hassle, throw, rattle, get to, and discombobulate.

Synonyms: Anxiety, perturbation, bother, concern, upset, unease, disquietude, fretfulness, nervousness, agitation, tension, stress, apprehension, fearfulness, foreboding, misgiving, butterflies (in the stomach), the heebie-jeebies, the jumps, twitchiness, disturbance, trouble, distress, care, uneasiness, disquiet, disconcertment, restlessness, nerves, edginess, tenseness, strain, fear, dread, trepidation, angst, the willies, the shakes, and jitteriness.

Synonyms: Problem, nuisance, plague, tribulation, irritation, vexation, bugbear, burden, cross to bear, pain in the neck, hassle, cause for concern, pest, trial, trouble, irritant, bane, thorn in one's flesh/side, cross, pain, headache, and stress.