Weird Things / Environments Making Me Dizzy - Panic Disorder

I've suffered from dizziness for nearly two years. My doctor (who recently retired) told me it was due to anxiety, and that it would go away in time. I do have a panic disorder, but with counselling, my attacks are now few and far between. The dizziness, though, has never gone away.

I've noticed in recent months that I get dizzy from the oddest things--walking in dark areas, sitting near someone in a rocking chair, facing a revolving ceiling fan, watching a parade go from side to side on TV. I also wake up dizzy most mornings, and sometimes dread turning over or sitting up in bed because of how it makes me feel. 

My ears have started ringing, and feel "full" with pressure, but my new doctor hasn't found the cause yet. I have had 2-3 incredibly minor vertigo episodes, where the room tilts up and down for only a few seconds and then stops. Sometimes it looks like objects in front of me are moving on their own. I usually feel as though I've just gotten off a fast merry-go-round. The room itself doesn't spin, but my head feels as though I've just gone in circles, most of the time.

It's not so bad I can't function, which makes me wonder if it is really my imagination. I keep telling myself it's stress or lack of sleep causing anxiety, but after researching balance disorders I'm beginning to wonder if that's true. I've been to so many doctors in the past two years--I just wonder if I've got enough symptoms of a real problem to warrant going to a specialist about this. (I'm so grateful for ANY advice offered!)