Hi guys recently I had a nasty cold about a week ago and a day later I first started hearing my tinnitus its a faint chirping sound that sounds like it's coming from inside my head. When I'm at work or with friends I don't hear it but when its quiet and I listen for it I can. Can it be blocked eustachian tubes? I have not been exposed to loud noises or had a head injury for that matter. I'm now on day 4 of tinnitus and it's driving me nuts because I'm worried it may become permanent. Please help. Thank you.