Blurred vision, just a migraine?!


Has anyone else been experiencing blurred vision in the third trimester? I'm past my due date and I've had two episodes in a fortnight, I had it a few times before I was pregnant when at work, college etc, the optician said it was a migraine, I hadn't had an episode in 8 months until 2 weeks ago and yesterday, it's blurry vision to one side and passes within half an hour then I get a sore head and need to lie down, I'm on iron tablets and my blood pressure is perfect!