Flashing white lights in vision

Hi guys,

36 weeks and just had an episode of flashing white lights in my eyes and shaky blurry vision with headache and racing heart which lasted 5 ish mins. I’m getting. Checked out now by midwife’s and just waiting for a doctor to come talk to me. For those of you who had or have preeclampsia did you have any blurry vision like this ?? I don’t think it is preeclampsia because it resolved itself but only a headache is hanging around. Any advice on what it could be