One of the things I've noticed as I've read more and more posts from
Tinnitus sufferers, is the definition of two distinct groups of
afflicted people.

The first group, like myself, has Tinnitus with whatever set of
characteristics is unique to that individual's case. This group is
defined by the fact that the Tinnitus doesn't *change* in any way
(i.e. it's not affected by exterior stimuli, experiences the person is
having, environmental conditions, or external scenarios).

The second group, unlike myself, has Tinnitus with whatever set of
characteristics is unique to that individual's case. This group is
defined by the fact that the Tinnitus *changes* in volume, intensity
or pitch (or some other characteristic), in response to exterior
forces such as additional noise or stimuli, environmental conditions
or experiences the person is having at the time of the change in
symptoms.

I speculate that these differences between the two groups stems from
two sources of Tinnitus, one being physical and one being non-physical
(i.e. one being due to injury or de-generative disease, and one being
due to emotions, stress or other parts of the body (such as blood
vessels or other nerves) interfering with the hearing experience
within the brain's auditory nerves or processing center).

What do you think about this?