When driving medal is knocking, I recently changed a flat tire and thought oh maybe I didn't put the lug wrenches on right but I took them out and it still happens, happens when breaking driving over bumps or something

What is your question?

It happens a lot when you drive reverse break and go over bumps, tried removing everything from trunk but still happens it's 6 years old 53,000 miles but it's used A TON, usually put about 200 miles a week from October-February than your looking at 60 miles a week from March -July and August till September about200-250 miles

What makes this problem better or worse?

Worse as it warms up and drives