writhe (v.)
- ache
- agonize
- ail
- anguish
- bend
- blanch
- bleed
- blench
- buckle
- contort
- crook
- crumple
- distort
- fidget
- flinch
- flutter
- glow
- gnarl
- grimace
- heave
- hurt
- jerk
- knot
- palpitate
- pant
- pound
- quake
- quaver
- quiver
- recoil
- screw
- shake
- shiver
- shoot
- shrink
- smart
- spring
- squirm
- suffer
- swell
- thrash
- thrill
- throb
- tingle
- toss
- tremble
- tumble
- turn
- twinge
- twist
- twitch
- wag
- waggle
- warp
- wiggle
- wince
- worm
- wrench
- wrest
- wriggle
- wring
