Just the other day, I was driving about 40 mph on my00 rs. All of the sudden this LOUD noise came on like I was draging on some metal from my front right side of the car. It was so LOUD. I stopped and checked it out but didn't find anything. I drove for about 2 blocks to my house and it was still there. I shut off the engine and restart it but it was still there. So I reversed it in the garage and let it sit there for half an hour trying to figure out what went wrong. I found nothing, pads ok, rotors smoothe. Now the noise has gone from the Loud Drilling noise to a noticable squeking noise. Anyone know anything?? I'm scared my rs is gonna fall apart. Please Help.

Youie