MMWUC - This the doctor in the house?

It's the start of the parade of doctors. I'm fasting for the blood test. Then comes the physical, dentist, eye examination, dreaded anal probe (I'm down to only three years in between pooper patrols), and dermatologist to slice and dice away more and more of me. Could be worse. Could be adding in a cardiologist or some other specialized -ist doctor. It's a real time suck to the schedule, but now I can use one of the marketing tips I've learned. I can leave behind my business card with the nurses and doctors and future patrons in the waiting room. I can sit there, waiting to be probed, while reading ONE PROMISE TOO MANY and extolling its virtues to anyone who passes by. Hmm. Maybe I should schedule more appointments.

How does health affect your protagonist or antagonist? Does a painful toothache cause them to react out of character?