I have a patient with a numb tongue.She said it feels like when you get numb from dental work. I looked up the symptom in Giovanni Maciocia’s Tongue Dx book and he says it’s either Heart Blood Deficiency since the heart blood isn’t reaching the tongue.Another book I have said it’s heart excess. I haven’t seen her yet so I don’t know the color of the tongue yet before I can make a dx. Any opinion or information is greatly appreciated.Thanks