to worry
- preocupar, inquietar, preocuparse, inquietarse, angustiarse
to upset
- volcar, derramar, perturbar, disgustar, inquietar, alterar, molestar, sentar mal a, trastornar, desbaratar (planes, etc.), derrotar (en deportes)
to confuse
- confundir, enturbiar, enredar, complicar
