Based on all that has been written here your question on how it can be high one week and normal the next is valid. It was mentioned on TV last night that the reading could be as high as 4 times the limit, thats big and you would think not natural. With all the overseas work done to create stimulates (their always ahead of the officials) could there be a NEW formula available which is not supposed to be long lasting. Don't know myself but something doesn't seem right on what we read. This is going to be very interesting to watch.