I know it's easier said than done, but try not to worry about it too much. Just take it one step at a time. Are you keeping a journal of your symptoms? If not, it might be a good idea to do so as it will help in the diagnosing process.

I have only had an occular migraine twice in my life. They kind of freak me out but I know what they are and they can be pretty entertaining. I get the kind with no headache just lots of jagged lines (black & white and colors). They each lasted about 20 minutes or so and resolved.

Hang in there, Elle! Let us know how your MRI goes and the results.