what could cause a shaky front end at all speeds and issues with sharp turns? on 2004 Chevrolet Impala

my front end has a fairly constant shake in it, even at lower speeds that gets progressivly worse as your speed climbs. Also if i make a sharp turn it feels wierd, like something is trying to keep the wheels from turning. Tires are only a few months old and i recently replaced my hub bearing assemblys on both front wheels during the 100,000 mile tune up. wht could cause these things and are they related?

Asked by for the 2004 Chevrolet Impala