I have been having severe headaches some nights that usually come along with seeing spots and vomiting. Last night I had one. I went and checked my blood pressure and it was high, 143/70. I checked again this morning, and it was normal. I assume it is probably high during most of these headache episodes. Could this be a sign of hypertension or preeclampsia, or would my blood pressure have to be continually high to indicate those issues. I have a drs app this week but am just curious. Thanks!