Brandi, I was in the same situation as you last summer when I was having stress from health problems. My bp was like 150 over 90! It's usually low or normal. They even had me on medication for a month or two.
Everything everyone said is true; what helped me was meditation. Also, when I do go to the doctor, I don't have any coffee and I don't walk fast from the parking lot, or climb the 6 flights of stairs as I usually would.
My bp is now at 110-115 over 70 and has been for months.
You might want to track your resting HR also. When I was really anxious, mine was sky high in the morning when I woke up and one time when I went to the doctor just sitting there, it was 115. I knew it was stress and coffee, since my HR, while not super low is low enough that doctors usually ask if I'm an "athlete."