QUOTE(Vagrant Dreamer @ Feb 1 2009, 09:10 PM)
Also could be minor earthquakes, depending one where you live, could be shifting caverns in the mountain if you live in a mountain, could be an inner ear thing due to air pressure, etc.
Rest assured if the earth was shifting or otherwise 'unstable' in any global sense, you would not be the first person bringing it up here, on our forum.
Calm down, go to the doctor. If your balance is significantly impaired, there are loads of things that could cause a group problem like that, from an infection that got spread around, to really bad stuff like radiation, water contamination, etc.
Jump on 'psychic problem' as a last resort, everything else you are able to rule out, 'psychic stuff' you won't be able to disprove to yourself, which will mean you naturally will tend to stick to it as an explanation, and might end up missing the real problem, one which might be a major health issue.
peace
I love you.