Could be a bubble on the tire, or more likely a bad hub assembly.

Check the ball joints - I was listening to a similar problem from a guy on Car Talk Radio.

I thought the same thing you did, but it was ball joints.. Hope that helps.

By the way that guy had a high millage Toyota too... Was that you on the Radio?

maybe the chasis is just wearing out already

. Tie rod ends

. Worn bushes

options

ball joints

wheel bearings

tires need aligned

you have a bent rim

It has 125,000 miles and it is a Camry 2000.

What could be the cause of this shaking? I do not want to get parts until get some ideas! someone said get wheels alignment which is expensive! What is your opinion?

Thanks