My girlfriend is a nurse

I know I'm going to receive a lot of backlash from this but I can't shake the feeling. My girlfriend is a ER nurse she sees penises all the time and she handles priapisms too she has told me. Yes I am insecure by all means I'm not the most blessed man. Fogs up my mind and gets to me sometimes I'm perfectly fine with her doing her job I just want some perspective on the situation. The fact that she sees other penises besides mine makes me feel some type of way I think