Glad you will be seeing a doctor, but it does sound like an ocular migraine. They are pretty freaky, some people do get a headache after. I just get bright light of different colors around the outside of my field of vision. Many people say they are cog shaped, I thought they looked like triangle flags that I used to see around used car lots. Sometimes the vision in the center will get blurred. The first one I had scared me to death, and I headed for the emergency room. Doctor said I had a welding flash...good thought, but I don't weld. My regular doctor thought I was nuts, and finally my eye doctor was majorly impressed and said she had never had one but heard they were interesting. I told her she could have mine as they make me feel sick to my stomach.