Preeclampsia

Karley
Has anyone been diagnosed with preeclampsia and if so how did you know you had it? What kind of symptoms? 
I keep getting severe headaches where I can feel it pulsating in my head and it makes me sick to my stomach. And then today I've had a headache all day and I have been on edge majorly today!! EVERYTHING has irritated me to death and I can't calm myself down. 
My mom said it sounded like high blood pressure..