The District of Columbia is a special case. It is not an actual state, and hence does not have senators or congressional representation. It is located between Virginia and Maryland on the Potomac River. It is on the Potomac River between Virginia and Maryland and coextensive with the District of Columbia.
Alcohol, caffeine, antibiotics, aspirin, or other drugs can also cause ear noises. Tinnitus may occur with hearing loss. Sometimes, it is a sign of high blood pressure, an allergy, or anemia. Rarely, tinnitus is a sign of a serious problem like a tumor or aneurysm.
The second way hum can be induced into an audio system is when a voltage difference exists between the common ground connections of two or more pieces of equipment. Third, clicking and buzzing noises can get into an audio device through the power wires.