Hello all. So, not sure how to describe this exactly. Every so often for a couple months now when pressing the brake pedal in I get a slight kinda click/not quite a clunk/sorta vibration for just a second when coming up to a stop. It doesn't seem to do it a coasting speed. There's not a wheel bearing hum or anything, just a brake pad clunking against rotor kinda noise when the feeling in the pedal happens. I've got a dip in the driveway and when the front wheel goes over it I get the same thing sometimes. The abs light came on this morning going to work, was still on when I left and went off when I hit a bump in the road, making me think wheel bearing but everything seems tight. Any ideas what this might be?