Gestational hypertension 36 weeks

I went to the doctor yesterday for cramping and belly pain. She said it was just painful Braxton Hicks contractions. When they took my blood pressure when I came in it was high and even with laying down it was still on the higher side. She said if I get nauseous or anything to go to the er. She told me to stay home from work Friday and rest this weekend. My sister in law brought me the home blood pressure ones today and it was still really high and then I started getting nauseous so I went in. Went to the ob emergency and they monitored my blood pressure and babies for a few hours then sent me home with a diagnosis of gestational hypertension. I am 36 weeks and 6 days. I am worried it’s high for no reason and my doctor seemed concerned but the ob emergency didn’t. Should I be worried? I go back to the doctor Monday but I don’t know if it will still be high or not.