Well what a wonderful job that would be!!!
I am in the medical field myself and I love it!!!
Well your 10th house (career and ambition) is in Libra, so equality and ethics are a big concern. Also it is associated with partners, so being an assistant could be indicated. Even anything legal would be indicated as well. Venus rules Libra...
Venus is in the 4th house, so maybe family medicine?
I have seen that surgeons are of an aries nature. Venus in aries makes for one who may like to initiate change, change for the better.
6th house is in gemini...which indicates a great deal of communication within your field of work. Mercury rules gemini, and Gemini here can lend itself to scientific work. A boring job would just not suit you and something intellectual and challenging mentally is what you would need to have fufillment; which as a PA one would never be lacking any of these qualities!
Mercury is in the 3rd house...a very fortunate placement for a smart mind! Speaking, writing and communicating are favored here. Mercury in Pisces can lend itself to a kind, empathetic, spirtual person. A healing aspect between words can be seen here.
Jupiter is in the 3rd house in the sign of Pisces. Which means that you are naturally compassionate, and desire for expansion and growth.
The third house represents neighborhoods, communications, education, teachers.
I would think that you would like to communicate, speak, write (mercury) with compassion, empathy, expansion and growth (jupiter) so you can shine (sun) within your neighborhood (3rd house)
I think that teaching is also seen here! I can see where you would want to help those less fortunate in your own backyard. Being a Pisces sun, mercury and jupiter all there shows your desire to change the consciousness of others and help them to heal.
Now here is the biggie, Saturn in the 12th shows that your responsibility, career, is in the area of working for the care of others, or for the education of others, within a hospital, religious, edcuational, or prision type setting.
Have you thought about being a teacher?
Now dont get me wrong, because us that are in the medical profession are teachers! We educate people all day!
That is why I like the medical profession. I get to teach, educate and empower patients to make the best choices they can when it comes to their healthcare.
Uranus in the 12th can show that you might like to do research as well.
I can see you in the medical field in some capacity. Now whether or not you will be a PA is determined upon your choices.
I do think that you have what it takes!!!
Good luck!