I had tinnitus prior to my injury but it has "doubled in volume" for me post injury. Thank god I learned coping skills prior to my injury because it really doesn't bother me unless I am in an extremely quiet place, like my closet.

Run a fan in any room you are in, or purchase a noise generator. I literally have fans (ceiling or otherwise) in every room of my house. Living in Florida, this has helped my electricity bill as well! I don't have to run my a/c as cold as other people do