I had an MRI about a year ago because of chronic daily headaches, it came back clear. They eventually went away after a few months. About three months ago they came back, and have been bothering me ever since. The pain is very different than anything I've ever experienced. It starts in the back of may head and radiates to behind my eyes. The pain gets worse after singing(which I do a lot of bc I am in choir and take voice lessons) and laughing. I also have tinnitus and can hear my heartbeat when I lay down. My throat is sore frequently, and my voice is pretty hoarse. I also get extremely dizzy and lightheaded when I stand up, I've almost fainted a lot. My question is, do my symptoms sound like Chiari and is it possible a herniation was missed on the MRI. I have a copy of my scans and could attach a picture as needed.