i'm 25 years old n got a problem with low blood pressure too, from i was small. normal of my blood pressure is 80/45 with the upper never reach 100. when i was 17 years old, i was told that when my mother is the same age of me,she got the same problem, but a little higher 100/70. became normal in her early twenties. now she is 55, and got the problem with high blood pressure in contrary. the problem is i'm already 25 and still got low blood pressure, and i can do all my activities as normal. never felt dizzy or what. i don't even know i had a low blood pressure till one day i checked it. is there any serious problem with me?