worried / concerned

Michelle
I'm 37 weeks & 3 days pregnant. I've had a headache that seems to go away and come back off & on for the past 2 days, dizziness, and I've been seeing black dots everywhere occasionally. Has anyone else had this problem? 
Last Friday (almost a week ago) at my doctors appointment they took my BP and it was high. They took it three more times and it was still high. The last they took it I believe it was 147/86? 
They said it's ok.. I don't have any excessive swelling. 
I have an appointment Friday (in two days) and I'm trying to wait until then but I'm worried because I feel "off."
Earlier I felt shaky as well.