i think i figured out the problem guys, thanks! reps to all..

ive got "malley" or somethin coilovers "cheap but not too cheap" and tokico shocks.. they came with the car, and it was actually a very smooth ride for a while.. i just recently got new wheels and lowered it about 2"..maybe a little more, and it seemed fine untill i got on the hwy to go to class.. and it was constant bouncing.. so im thinking i may have blown out a shock or strut? anyways, i cant rly look at it now cuz my fuel pump is dead and i cant get it in the garage