Not sure what could be causing this. Anxiety can cause just about
anything, but having anxiety doesn't make you immune to other stuff. I experience phenomena not entirely unlike what you describe and was told they were ocular migraines. During the worst ones I feel like I'm going to faint, too. You may ask your doctor about
it. Not all migraines cause headaches....that I know.
But, yeah, if you have anxiety and then you experience something bizarre like this it could easily trigger a panic attack. If you have the option, you might try to see a neurologist about
PS -- the cool thing about
seeing a neurologist is that he's almost certainly going to order a C/T scan. When you get one you can request a copy from the techs. It's pretty cool to hang in your window. Not everybody has a picture of their BRAIN. It's a great conversation starter.
My Brain: My friend, My enemy: A blog to chronicle my attempt to recover from anxiety/panic disorderanxietypanicdisorder.blogspot.com/