White fury tongue? I have had a white "fury" tongue for about 2 weeks. I'm not dehydrated because I drink several cups of water a day. I have tried coconut oil and grapefruit seed extract thinking it was thrush but they are not working. My tongue is split

Usually . Usually a white coating on the tongue represents debris, bacteria and dead cells that makes it look white. The "furry" presentation is due to the thin hair like filiform papilla that cover the dorsal surface of the tongue. This presentation is usually harmless and temporary. White lesions in the mouth can also be indicative of more serious conditions such as infections, autoimmune diseases and precancerous / cancerous lesions. For this reason it is recommended that you be evaluated by an oral and maxillofacial surgeon should the condition persist more than a week.
Fury tongue is... Fury tongue is caused by the normal papillae on the tongue (which are like little tentacles) getting longer than normal. Take a spoon or tongue scraper or tooth brush and scrub the surface of your tongue in order to give these papillae a good "haircut".