Embarrassment was certainly the driving force behind the dread when getting an enema while growing up, but I was usually more or less accepting of the situation most of the time. I was maybe even moreso embarrassed by the nearly every evening reminders to go to the bathroom.
Mom was fairly discreet though at least around people who were not members of the immediate family. My sister, aunt and grandma, maybe a couple other relatives all knew about my "bathroom problems," and bathroom reminders were rather nonchalantly made if they were around. It really wasn't a secret when I needed an enema either.
However around non family members she did seem to show more regard for modesty; although I always held some fear that she might slip up and remind me to "make a poopy" or something around other people (or get overheard doing so), to my knowledge it never happened. I did overhear my sister tell an overnight friend of hers once when we were all quite young, that I might need an enema while I sitting on the toilet one night because I think her friend had needed to use the bathroom.
In my 20's I was TERRIBLY embarrassed when I started buying Fleet enemas for myself... That, in turn led me to make the EXTREMELY embarrassing purchase of my first enema bag. I felt extremely embarrassed giving myself a Fleet enema for the first time (by myself) and totally in awe of my own embarrassment the first times that I had to give myself an enema with that bag because I had stopped buying disposables. No way in hell would I have told ANYONE, ESPECIALLY any family members, that I had needed an enema.
I'm still too embarrassed to tell any surviving family members that I never completely got past needing at least an occasional enema over the years, although they'd probably be interested to know, especially my mom lol. Ironically, I'd be far less embarrassed now than I have ever been in my life to admit to or discuss enema usage among NON family members, provided of course that I was reasonably sure that they were like minded, sympathetic, or just plain didn't give a damn.