I Am A 40 Year Old Woman That Has Always

I am a 40 year old woman that has always had a very low blood pressure rate it's always been about 117 over probably about 75 76 I've been on a very high stress level and today I started feeling really red in the face my ears for flaming hot I just started my neck got really hot and I started feel like I'm going to pass out and I kept on like doing these many pass out for I could hear my boyfriend a jerk me back up and snap out of it they took my blood pressure is 117 over 127 what does that mean