OJ's DNA

So we had a lot of rain over a 3 to 4 day period here in California last week, and as strange as it sounds I now here the sloshing water when driving. As I'm driving from stop light to stop light I can hear it out of my left ear. Sounds as if coming from the door panel or B pillar, down below and behind me is the best description I can muster. Has anyone had this experience before?

Plutoe

Very strange as the door stampings have drain holes to minimize the amount of moisture that collects-----Does any of the rear carpeting feel damp and or have you looked under the seat for something rolling around!