Yagi

I've had this little bump behind my left ear for a while now. It's at the area where the lobe meets the cartilage, and where the ear meets the head.. That lovely little crevis, if you can picture it. It was really rather small for a long time, and I just assumed it was some sort of pimple or gland. I haven't been paying much attention to it, but I think it got a bit bigger, but only slightly, and then smaller again, but I recently felt it, and it feels like it's gotten larger again (though it's still pretty small. Not visible really unless you push the lobe forward). It's a bit uncomfortable to prod, but not excessively painful or anything. It seems like it could be a gland, but I don't know. I'm a 15-year-old female, and I became a vegetarian a few months ago, if any of that that could have anything to do with it. I also had lymphangioma removed from the right side of my neck 2 years ago. Bleh, I've just gotten all paranoid now, so if anyone has information or ideas as to what this could be, it would be greatly appreciated. ^^;