By Rachel Nania, AARP Patches, puffiness and sores can point to a variety of diseases and conditions. Your eyes may be the window to your soul, but your mouth is the gateway to your health. After all, there’s a reason one of the first things doctors do at a checkup is make you open up and “say ahh.” Clues to a number of conditions can manifest on the tongue, lips, teeth and gums. Here are a few to keep an eye on: Lumps or lesions on the tongue It’s completely normal to get a