Headache and blurred vision

Hi guys, im on my 20th week. I have been getting really bad headache on the left side of my head every single day and without fail I would take panadols (2 pills a day but sometimes 4) because I can’t take the pain. This has been going on for 2 weeks. Should I call my gynae or should I go to emergency in this case? At times i do get a blurry vision as well.