I don't want to give a medical diagnosis, but this sounds familiar to me as a migraine sufferer. You might be experiencing a migraine without headache: https:/

I don't want to give a medical diagnosis, but this sounds familiar to me as a migraine sufferer. You might be experiencing a migraine without headache: https://en.wikipedia.org/wiki/Acephalgic_migraine https://en.wikipedia.org/wiki/Acephalgic_migraine