My BP is always at 120-130s

But last week i went to my doct appointment im currently 26 weeks and my blood pressure was at 145. I told the doct about how my right side of head n ear n neck were hurting and they just told me to drink more water and that will take all the pain away and just said my blood pressure was a little bit high but i dont know! Now im worried about getting preeclampsia and not getting treated in time since my doct never tells me anything!