Maybe you could work as a CNA to see what parts of the medical fields would interest you? Nursing has a wide variety of opportunities. You could do patient care floor nursing, you could work in a doctor's office, do school nursing, case management, or even be a nurse manager. Other careers you could like is speech pathology (helping people get better with speech/eating), physical/occupational therapy (getting people walking and doing activities of daily living again), respiratory therapy, radiology tech, ultrasound tech, medical assistant, etc.
Another suggestion would be to volunteer at a hospital so you can see how the hospital functions and meet people/ask about their careers. There are so many options out there. :)