I am suffering from some sort of tongue ailment and the two doctors I've seen are stumped. My tongue soreness has been off and on for 3 months. I've been treated for thrush 3 times but the soreness returns. I've been tested for diabetes, taken off Zoloft and nothing seems to help. I am hypothyroid but otherwise healthy. Has anyone ever had this symptom? I know I don't have HIV and I'm suffering. It doesn't sound like a big deal, but when I get up in the mornings my tongue feels like someone's put a rubber band around it, numb yet painful, swollen and white-ish. Can anyone shed some light? I've searched the internet until I'm frustrated.