Light headed is a more accurate term than "dizzy".
Now, this LPI link from another topic on blood pressure provides fascinating inormation!! http://lpi.oregonstate.edu/infocenter/minerals/potassium/
Deficiency (K)
An abnormally low plasma potassium concentration is referred to as hypokalemia. Hypokalemia is most commonly a result of excessive loss of potassium, e.g., from prolonged vomiting, the use of some diuretics, some forms of kidney disease, or metabolic disturbances. The symptoms of hypokalemia are related to alterations in membrane potential and cellular metabolism. They include fatigue, muscle weakness and cramps, and intestinal paralysis, which may lead to bloating, constipation, and abdominal pain. Severe hypokalemia may result in muscular paralysis or abnormal heart rhythms (cardiac arrhythmias) that can be fatal (2, 4).
Reminded me that recently I had severe cramps after taking a walk with my wife.. In several leg muscles at the same time.
Maybe the muscle weakness is unrelated to cortisol - unless there is some relation to electrolyte status?
Because the following fascinating tidbit comes next:
In rare cases, habitual consumption of large amounts of black licorice has resulted in hypokalemia (6, 7). Licorice contains a compound (i.e., glycyrrhizic acid) with similar physiologic effects to those of aldosterone, a hormone that increases urinary excretion of potassium. Low dietary intakes of potassium do not generally result in hypokalemia (5). However, research indicates that insufficient dietary potassium increases the risk of a number of chronic diseases (see Disease Prevention).
Why is this interesting? I have been taking the NOGERD product daily for some time, after individuals here at the forum said it had stopped their chronic GERD. (It does seem to work, in the sense that the problem is worse if this product is not taken.) The product, from LetsTalkHealth.com has one ingredient on the label - Licorice Root.