I have never gotten a migraine before but a few months ago I got a strange visual sensation. It was like a jagged sparkly semi circle in the right corner of my eye. It affected both eyes at the same time and slowly disappeared. I checked online and it said it may have been a silent migraine that comes without a headache. I didn’t worry too much. However it came on again this Saturday. No headache. Just the sparkly semi circle that comes on slowly and then disappears. Should I go to the doc? Could this be serious? I’m so scared