Managing stress

My husband also has tinnitus and after a while of trying to puzzle it out, we realized his increases and decreases with his stress levels. He's a bit of a workaholic, so this has forced him to take better care of himself and not push himself so hard. We also used to live in a big city and realized the intensity of living there was having an effect on his tinnitus, so we made the decision to move to a quiet neighborhood in a smaller city. After we moved, his tinnitus lessened considerably.

We've also realized that it's connected to his jaw clenching (also caused by stress) and I've been trying to get him to work on some jaw massages to no avail. :)

Oh! There's a tinnitus subreddit which may or may not be helpful. Some posts there helped me make the jaw clenching connection. Linking it here.