I pretty much always have a rectal exam (just to check for rectocele) during my pelvics. It is no big deal unless your GYN has clubs for fingers. Try not to freak out about it. It is not as if you had your surgery yesterday. You are all healed up. Sometimes I think those surgeons cause more trouble than they think when they give such admonitions, especially when some of them can be pretty rough themselves. My GYN is very gentle. My GI always does a digital exam before a scope too, it is pretty standard.
Jan