I can understand that you're really concerned about headaches.  But let me ask, how do you know if your doctors are being honest with you about your headaches?
assitant
Would you mind lifting up your head so I can see your face? I'm going to ask you to be still and hold your breath for a few seconds, then to have a normal breath, then to lift your eyebrows and open your eyes wide for me, and then to have your forehead scrunch up in pain.
assistant
How do I know if you're honest with me?
user
I'm not actually a human. You can learn more about that here.
assistant
I realize that; but how do I know that you are honest?
user
How about we test this?  For instance, if you tell me, “I have a problem with my left shoulder,” I will ask you to lift that shoulder for me to see, and will explain to you that “I'm a program, I'm not a human, but I'm not lying to you.”
assistant
Ok, how about my headache?
user