grab, clutch, choke, contract, scratch, hurl, bend, curl up, knuckle, wriggle, totter, cry, hiss, snort, grunt, water, pant, whimper, tremble, moisten, crumple, bead up, blanch, reel, toss and turn, gag, purge, bulge, huff, puff, gasp, cringe, flinch, shiver, shudder, wince, twinge, grimace, vomit, barf, throw up, swell, sob, wail, moan, bawl, sniffle, snivel, weep, blubber, writhe, blister, bloat, groan, pass out, break out in, rub one's eyes, stroke (a sore spot), grit (teeth), peel, struggle (for breath), hold (one's head), drain (color), scrunch (one's face in pain), suck in/on

jolt, worry, stun, startle, scramble, distract, cloud, hoodwink, mislead, fool, vex, confuse, confound, stupefy, nonplus, disorient, bewitch, overwhelm, disturb, stump, puzzle, jumble, discombobulate, shock, flummox, astound, unnerve, flabbergast, daze, faze, floor, alarm, destabilize, scare, alert, distress, unsettle, disconcert, discomfit, perturb, jangle, throw someone off balance, test (someone's assumptions), discompose, subject to

blindside, flatten, crush, strip, topple, demolish, wreck, destroy, paralyze, overpower, trap, beat down, drain, ravage, overwhelm, derail, ruin, hurt someone's image, sap, doom, suck out, spoil, tear someone apart, wreak havoc, break someone's will, finish someone off, defeat, cripple, disable, deplete, devastate, overcome, disrespect, go into shock, throw for a loop

jolt, stun, startle, surprise, trick, baffle, stupefy, befuddle, bamboozle, bewilder, stagger, mystify, nonplus, disorient, overwhelm, stump, perplex, discombobulate, shock, take by surprise, astonish, dumbfound, flummox, astound, unnerve, flabbergast, daze, faze, floor, amaze, alarm, upset, catch off guard, ambush, test (one's assumption), undermine, throw for a loop, throw off-kilter