Hello, I have read your inquiry. I recommend you first brush the tongue and make sure this is not a coating. Rinse with warm salt water. Second, I recommend due to the climate you are living in, that you make sure you are very well hydrated. A dry mouth is very stressful on all oral tissues. You are well balanced with vitamins and no deficiencies? Consider updating your blood test results if you have not had lab work done in a while. Autoimmune changes to your blood and muscle tissue are a concern. Is this change unique to your tongue? Thank you for contacting Heallthcare Magic. I am glad to answer additional questions if you provide a more detailed description of your tongue condition. I recommend following up with your regular physician as well as visiting your dentist for a routine exam and cleaning to observe the tongue.