My rear pads were worn down to nothing yesterday, so i go and do my rears today. I finished them, and i still get the grinding when i stop, and it keeps squeeling like a beat bearing when im driving along. Whats up with it? its like it just started quitely, and started getting worse over the past 3 days, so its not like its been a progressively worsening problem. any insight would be appriciated, thaaaanks.