Choosing between biomedical and software engineering

I am a high school senior who is very interested in biomedical engineering. I am also very good at computer programming. I don't know if I will enjoy biomedical engineering just based on the sole fact that I have never tried it. However, I am extremely interested in what biomedical engineers do. I know that I would like software engineering because I have done it. Yet, the possibility of being a biomedical engineer lingers in preventing me from being sure about computer science.

Also, I know that biomedical engineering is predicted to grow greatly yet it is still a very small field. While computer science is growing pretty well and it is a large field. I am considering majoring and minoring in each one but I can't decide.

What do I do?
posted by Christina, Organization/City on September 1, 2013