Yes, I've had the rocking sensation for probably at least 1.5 years. I didn't always have it when the dizziness first started, but it definitely is here almost 24/7 now. It's usually at its worst for me in the shower, I still don't really know why. AND my heart rate goes up while showering as that seems to be a huge trigger for the rocking sensation. I too do not consider myself to be an anxious person and had NO anxiety prior to this, but this condition easily brings it out, and as others have said, it's normal. For me my sensations are always evolving, so as I get used to them I get less and less anxious about them but then I get hit with a new sensation/experience and my heart rate will go up for awhile until I'm used to it.