Hello,
I was diagnosed several years ago with an arachnoid cyst above my left ear. My symptoms were strange. At first I was being treated for sinus problems but later found with an MRI the cyst. At times I have a full feeling in my head, light headaches and dizziness. At the time of my diagnosis, the neosurgeon did not feel it necessary to do anything since my symtoms were mild. My question is, does barometric pressure have any bearing on the headaches? I was also diagnosed with Chiari 1 at the same time. I just notice it seems headaches are worse when it is rainy or getting ready to snow. Has anyone else noticed this?