What would cause a bouncing, vibration feeling while driving.

What is your question?

I hear and feel a bouncing sensation while driving the vehicle. When this starts, if I ease up on the accelerator, it stops. It is a 2012 Honda cr-v with about 153,000 miles.

What makes this problem better or worse?

When I ease up on the accelerator

How long has your 2012 Honda CR-V had this problem?

quite a while, a year or so