When i burp, only one side of my throat will release the air. when i clear my throat, only the same side works. i don't just feel it. what is wrong?

Blocked eustachian t: If you have a blocked eustachian tube, you may feel a sense of fullness in one ear, and pressure changes in your throat (or when changing elevation) may cause pain or pressure in your ear. Common causes are simple colds or allergies, but if the condition persists, you may want to get checked by an ear nose and throat doctor.