What causes tongue tingling for months besides a B12 deficiency?

"burning tongue" The tingling tongue is similar to the common complaint of "burning tongue." this is an inflammatory condition of the tongue that is possibly caused by chemical irritants such as those in hot spices, or thermal irritation from food or drink that was at too high a temperature. Acid reflux can also cause chemical irritation of the tongue.
B12. Tingling can be a sign of B12 deficiency. B12 important for nerve function. Other causes could be related to nerve damage or stroke. Otherwise called paresthesia of the tongue.