- Autonomic dysfunction - Increasing salt and water intake and adrenal support are important here (unless one has high blood pressure of heart failure) as would be proper chiropractic adjustment of the atlas area in the neck.
- Intermittent drops in blood sugar from low adrenal. If this is the cause, dissolving 1/2-1 teaspoon of sugar under the tongue during an attack should eliminate the attack in under 2 minutes (and usually quicker). The sugar is not a long term solution (though sucking one tic tac during an attack is helpful) but simply tells you to treat for low adrenal issues.
- Neck muscle spasm can trigger episodic dizziness.
- Have a physician rule out heart problems (abnormal rhythms or valve issues, etc).
- Spend a few days at a friend's house and see if the problem resolves. If so, look into a condition called "sick building syndrome."
In those with vertigo in CFS/FMS (much less common than dizziness), I am likely to presume an infection, such as Lyme, affecting the nerve to the ear and give a trial of long term antibiotics.