Thanks for that info, John. I have seen that information and have done a good deal of googling. I have indeed considered going to Mayo for evaluation, like you wisely suggest. I have to believe its related to a thyroid problem, depsite the fact that my TSH numbers are in a normal range. One doc said he thought I was dehydrated. I think they just wanted to move me through fast, and charge me about $700 out of pocket for the 2 5 minute dismissive office visits. I can't imagine I have been dehydrated for two months. I hydrate often and have not changed my beverage consumption patterns. Also, I have started taking B12 per a friends suggestion. Been on B 12 about a month and a half. No change from adding that yet. Thanks again! I appreciate your help.