The context of the following conversation is Jan was getting their blood pressure checked. They fell in the range of being healthy.:
Jan says I finally got some good news at the doctor's office! My blood pressure is under control..
The friend responds I'm glad to hear that. I was really worried about you..
Jan responds What made you so worried?.
The friend responds High blood pressure is really bad for your heart. It's really dangerous..
Jan responds My doctor pretty much said the same thing..
The friend responds Whatever you've been doing to get healthy, keep up the good work!.