Up until yesterday I've had no problems with my brakes at all other than replacing the pads at 70,000 miles. My car now had 103,000. So Yesterday I get out to go get food at lunch and the front driver side brake seems grinding but after about 5 minutes or about 1 mile worth of driving it goes away. I parked my car and worked for about 4 hrs then the problem reappeared and disappeared again. Last night I went to get some food at Wally World and it reappeared after I had let the car set a while. So Today I get up with the anticipation of having to take the care in to get it looked into when the problem doesn't reappear. Does anyone think this is serious enough for me to take it in today as opposed to next week? What could this problem be? It's not grinding all the time so I'm not thinking its the pads but I could be wrong. If it is then my pads have lifetime warranties so I should be good there. Any ideas?