Hi Madison! There are lots of great career options in the health care field! According to this site http://www.guidetohealthcareschools.com/degrees/allied-health/physical-therapy
related careers to physical therapy are:
"Fitness trainers can often perform tasks similar to physical therapists, particularly because both are often asked to provide advice and counsel on nutrition, exercise, and lifestyles. Fitness trainers often work with those who are injured or recovering from injuries and surgeries, seeking to improve the function of their bodies. Unlike physical therapists, fitness and personal trainers do not have to complete extensive education, and can usually work with only certification.
A health educator is a person responsible for providing information and counsel on issues regarding nutrition, fitness, and disease control. Increasingly, public and private schools are hiring health educators who typically have a minimum of a bachelor's degree to help keep students informed on healthy living choices. However, health educators usually work as consultants for hospitals, clinics, or private agencies.
Nutritionists are essentially a specific type of health educator. They are responsible for providing guidance for people in regards to their food choices, which is a service that those recovering from injuries and surgeries are often in need of. Nutritionists may have an associate degree, but a bachelor's degree is typically preferred."
You can find information about each of those careers and how to become each of those things on this page: http://www.guidetohealthcareschools.com/degrees
Additional careers that are similar to physical therapy that you may enjoy are occupational therapist and occupational therapy assistant. Good luck with your choice! :)