Have you job shadowed a PA? What about shadowing any other healthcare professionals like nursing or therapists (PT, OT, ST)? Before a drastic switch in major make certain it’s a change you can use towards your goal. PA requires upper division science courses plus experience in direct patient care. If that’s a route you’re really interested in start researching how to get those hours in your community. I’m a respiratory therapist and work with lots of different healthcare professionals if you have any other questions.