Talk to Ent Specialist on Hitting Own Voice In Ear

kindly suggest me what to do there is discomfort when i speak my own hit in my left ear which is very irritating. there was some problem in my left ear for many years, my left ear often got blocked so i had been visiting ENT he used to clean my ear through vaccume, but now my ears don't get block but hitting my own voice in my left ear whenever i try to speak loud