Preeclampsia?

Na
So the past month, I've gained about 20 lbs in one shot, my bp fluctuates from high to low all day, blurred vision, dizziness, headaches, heart palpitations, ridiculous swelling of my fave, hands and feet, but no protein in my urine. I have protein in my urine but not enough to be considered preeclampsia just yet. Anyone else going thru this? I'm 30 weeks and they still don't know what is wrong with me. They think I'm borderline preecplamptic.