HELP! I'm running out of ideas

If you want good advice, you must give good descriptions. So far, you have not done that. No offense.

To say it "sounds like my rims are falling off" sounds like a third grader. Just callin it like I see it. Give us good, accurate descriptions of the noise, or vibration or whatever it is and we might can get more specific. Vagueness is not a trait you want when trying to diagnose a problem like this.