Every morning I wake up I hear a thump, thump type sound in my head. Deep breathing seems to help but it continues until I get my day started and my body moving. At first I thought it was environmental...something in my house or the neighborhood were the causes of the sounds I heard. When traveling, however, and I arise in the morning I still get that thump thump sound in my head for a while. Any ideas on what might be causing these thump, thump sounds? Thank You.