I'm 8w1d today and a couple days ago I had an episode where I started seeing white spots and my peripheral vision was gone. It lasted about 30-45 minutes and then I was fine. After my vision went back to normal I had a headache and felt nauseous. Fast forward to today I had another one of those episodes. Same thing happened and lasted about 20-30 minutes. I've looked at the times that it happens and the first time it happened was right after I ate a big meal and that was the first time i had eaten that day. Today when it happened I had drank a dr pepper right before but hadn't ate anything about 4 hours before that. I checked my blood pressure during one of the episodes and it was normal. Could it be my blood sugar acting up or just general pregnancy symptoms? I didn't notice this when I was pregnant with my other two.