I can hear and feel thumping on driver's side floor board

What is your question?

2009 Dodge charger SE 2.7 when I apply the brakes to come to a stop I hear and feel a knocking / thumping under my feet it was a wobble in the front end at first,but now I can feel it through the floorboard .my steering wheel is NOT vibrating, there's no hard pull to the left or right no big noise when I turn or corner .there a slight grinding noise at times but not hard metal loud grinding . Everything I search online doesn't fit the description of this issue .because there is no other vibration that I feel anywhere else .

What makes this problem better or worse?

When braking to come to a stop

How long has your 2009 Dodge Charger had this problem?

A few months