unexpected effect

I've had general anesthesia surgery twice before. All I remember of tonsilectomy is a sore throat so bad I did not even want any of the promised ice cream. The shoulder surgery was merely and clearly painful and awkward.

But the torso has many active parts. Is the discomfort from the sutures, from bruising from the inflation they used, from muscle complaining about the alien mesh it has to meld with, or something significant in one of the other organs?

I didn't expect the confusion.