This would usually mean a mild infection or inflammation. The sensory nerve
supply of the front 2/3rd of the tongue for general (pain) and special (taste) are two different nerves; the lingual nerve
and the corda tympani nerve (which passes through the middle ear). If you are middle aged, this could also signify calcium, parathyroid, vitamin B deficiency
or hormone changes expected during menopause. Local infections, injury from a sharp tooth, stress, hypertension
, diabetes can also cause this symptom. If your age is higher, very rarely it may signify a TIA (Transient Ischemic Attack
). However, if your symptoms persist, you should see a doctor.