Has anyone had preeclampsia?

Eve

I am 35 +3 weeks and have a lot of swelling in my feet and hands, a bit on my face. Blood pressure has been normal up until this morning (150/90), it then gradually went down to 130/75. There is a small amount of protein in my urine but bloods are normal. Question, is this how preeclampsia begins? Would you expect blood pressure to come back down? Thanks in advance ladies x