Hi, My mother is experiencing the same thing and has been hospitalized. These appear to be TIAs. She experienced four or five of these and then had a moderate stroke. Three days after her stroke the doctor sent her for an MRA where they found she had several strokes. It has affected her balance. She continues to have TIAs in her recovery and there is little they do for it. This website has an article you should read. I will look it up and post it for you.
Doctors do not take this seriously. Have you started taking an aspirin a day? Mthat will help to prevent another one. The only way that will hurt you is if you have a bleed in your brain.