Was she also horrified to hear little boys screaming when they were slapped on the face to get them breathing? The fact is that circumcision at that age is no more painful. I've been whipped with a belt by my Dad on occasion and that was much more painful than a circumcision that I can't even remember.
Enough studies were done to prove conclusively that babies feel pain being circumsized, which is why it can no longer be done without anesthesia. As for you "not remembering" it....You are aware that some patients undergoing psychiatric care have been hypnotized or otherwise regressed to birth and even (supposedly) a month or so prior to birth. It is possible that at least some men circumsized w/o pain relievers were traumatized by this, even if they don't remember the pain consciously . In any case, I will take the word of the many health care professionals who did the studies as to the barbarism of the earlier methods .