Blood type - Positive or RH Negative?

Interested in knowing if you have an avm or hemangioma and are RH negative? I'm RH negative. I'm asking because it seems as if our blood type has a lower blood pressure, lower blood flow, and may have an extra vertebrae. It seems our blood type may be more susceptible to this.

I am A+ blood type I guess when I was born at first they thought I was-
I also have low blood pressure pre stroke was 90/60 now about 110/70
I have a DAVF and I have seen on another support sire for Ehlers Danlos which I have which is a collagen disorder - and I found quite a few people on that site that also have had DAVFs

Angela

O+

My blood type O- which is good and bad because I’m able to donate to every one which is good but when I need blood that’s the trick because all I can take is O-. While having my surgeries I did need blood because I’ve had 5 surgeries. Funny part about all of it no one in my family has O-.

I am O+ and despite being overweight have low to normal blood pressure however I don’t have unusually low blood pressure (top number under below 100) for someone my age, weight/size.