I have noise coming from what seems like my freewheel. The noise sounds kind of like a rear derailleur out of adjustment, but that is not it, and also, I can kind of feel it. It only occurs when pedals, even when I just lift the back wheel and crank the pedals by hand. Can't hear it when I stop pedaling but that just may be due to the normal clicking sound hiding it then. Any ideas what this might be. I did just recently degrease the whole freewheel area and chain and then lubricated the chain. Thanks for any suggestions I might do to cure this.