It working if you have them symptoms! Are you sure your touching one probe with your hand at the same time as your tongue? Like your tongue and move it round the electrode using the tip of the tongue! Im surprised how people cannot do this! I think Don Croft and Egoli think people have cow tongues because the distance between the electrodes, especially the Silverado is way to far for non Reptilian tongues. I'm quite sure the Queen would be at ease with this method.