Pregnancy is going well, only issues have been mild Polyhydramnios and slightly low iron. I started having blurred vision and headaches a couple of days ago so I went to the hospital to get it checked out. They did a load of tests that all came back ok and by that time the symptoms had gone. No problems yesterday but earlier today my vision became blurry again for about 30 minutes. Anybody experienced this? Or have any ideas? I don't want to make another trip to the hospital to be told that there's nothing wrong with me.