Marjory-
I suspect that low blood pressure is an excuse for something or other.
Low blood pressure does not exist as a disease but a symptom. If your are having symptoms of low blood pressure then you are bleeding to death, have problems with your adrenals, or something else.
Hey, if you can stand up with a pressure of 90/60 then you might outlive your grandchildren.
I would recommend that you you speak with your doctor. He will probably not be as brutally honest as I am. After all, his income relates to how well he pleases you. AND ALL MY INFORMATION IS FREE!
His is most likely more accurate. Marjory- Google low blood pressure. Trust the sites that do not have a name like apholkuguric homeipathic instacure.com. People will buy into your misconceptions, but you should not buy into theirs.
So here is a bottom line. Describe your symptoms and hope that someone will give you some beneficial advice.
JayR