I had a fistula and anal fissure. A few days ago.

superficial fistulectomy and chemodenervation of sphincter. Is what is on my clinical notes. So everytime I cough or sneeze it hurts like my butt is coughing. Also been having no urge to eat been getting less pain when I don’t eat. I talk to my doctor and he told me it’s nothing to worry about. Just curious if others have gone through that