My Secret Nighttime Fantasies with Patients

I've been practicing medicine for five years now, and while I'm generally happy with my life as a doctor, there's this dark secret that haunts me. It started innocently enough, I was attracted to a few patients because they were intelligent and kind, but then the fantasies began. They're not anything overly graphic or violent; I never want to harm anyone. Instead, they revolve around consensual role-playing scenarios with these patients, where I play a more vulnerable or submissive part, letting them take control. It's all in my head, of course, and I'm careful to maintain professional boundaries. But the guilt eats at me because I feel like this is wrong somehow. These are adults making choices, but it feels taboo even though there’s no real risk involved. How do others deal with these kinds of desires?