<Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (April 2016) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (April 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> With patulous Eustachian tube, variations in upper airway pressure associated with respiration are transmitted to the middle ear through the Eustachian tube . This causes an unpleasant fullness feeling in the middle ear and alters the auditory perception . Complaints seem to include muffled hearing and autophony . In addition, patulous Eustachian tube generally feels dry with no clogged feeling or sinus pressure . </P> <P> Some patients with this condition are disturbed by the perceived volume of their voice, causing them to speak very quietly . Their own voice may also sound lower to other people, because the trachea has more volume when the Eustachian tube is open . The patient may also sound as if they have congestion when speaking . Some sufferers may have difficulty in normal activities . They may also experience increased breathing rate, such as that brought on by physical activity . The increased activity not only increases the rate and force of pressure changes in the airway, which is therefore transmitted more forcefully into the middle ear, but also drives increased blood flow to peripheral muscles, compounding the problem by further depleting the Eustachian tube of extracellular fluid and increasing patency . The combination can lead to severe exacerbation of the symptoms . The urge to clear the ear is often mentioned . </P>

Can eustachian tube dysfunction cause shortness of breath