Synonyms and related words :
ail, be the matter, beset, bother, complicate matters, concern, disaccommodate, disadvantage, disoblige, distress, disturb, flurry, fluster, harass, incommode, inconvenience, irk, perplex, perturb, plague, pother, put about, put out, put to inconvenience, put to it, put to trouble, puzzle, torment, trouble, upset, vex, worry