When i talk i can hear myself a lot louder than usual. when i am not talking i hear a constant vibration. this is the 3rd time i have experienced this?

Blockage: Could be a blocked ear canal (ear wax), or a blocked eustachian tube. I would recommend seeing your pcp.

? Eustacian tube dys: This symptom is usually associated with changes in function of the eustacian tube [the tube that connects your middle ear with the posterior pharynx]. This can be associated with allergies, or non-allergic rhinitis. A detailed endoscopic exam by an ENT specialist might be helpful.