Vision loss but no high blood pressure

I've been having vision problems consistently this last trimester. I am having a hard time reading anything that's not right in front of me and I also get nauseous with REALLY blurry peripheral vision (feels like a migraine). I went to L&D a couple weeks ago and they couldn't tell me anything because my blood pressure is fine (even slightly low) and I do not have GD. Any other women having a similar problem?