Sometimes if I fully brake and wait at a red light I feel something sorta vibrating or sort of like tickling my foot a little. It does not always happen. Those couple of days when my brakes were extra tightened I dont recall feeling it. The sensation started appearing after I got my catback installed - and my muffler shakes pretty hard too.
I had two different shops look at my brakes within the past week and both said the front brakes look good and the first shop messed up the rear and the second, more reliable shop reassured me after adjusting the first shop's mistake that the brakes still have 80 to 70 life left. thanks (01 civic btw)