Can I get a doctors note for bc side effects?

I’m on my second month and my stomach hurts so bad from cramping, I have to go to the bathroom a million times, occasional diarrhea, feel like I’m going to throw up, back pain, fatigue. I just started my period but everything is 10x worse rn because of the side effects combined with pms. My professor requires a doctors note for absences but I don’t see the need to waste my time going to a doctor when I know this will go away. How should I handle the situation? She’s a woman so maybe I could appeal to her?