Feel like I'm overreacting

I have been admitted to the hospital a few times over the last few weeks because of a vision problem and headaches. But when I go in my blood pressure is fine and there is no protein in my urine. But my vision starts moving in my peripheral and starts getting really blurry and then my head starts hurting really badly. Has this happened to anyone else it's scaring me. Also I'm 39 weeks and 5 days