"Agracier" I agree totally with you : the nudity in front of adults as long as it is for medical reasons and nothing pervert in their attitude is nothing compared to the corporal punishments
I was lucky as a child and a teenager because I never received a real corporal punishment
At school, The PE tacher used to kick our asses sometimes for any reason he found ( to laugh too loud, to chat with a friend, to not listen to what he said , to not follow his instructions, to be too slow to change in PE clothes and so on ..) but it did not hurt really, it was more a fatherly manner than a sadistic punishment
"DTC" you said that at 18 age your mother was still coming with you to see the doctor for the last time and that it was not a big deal
why not if you were comfortable ?
but you added that you were always naked when she wanted to take your temperature in your bottom,
I assume that it was finished at 18 age
Normally a male teenager could take himself his temperature after 12 or may be in some families 14 age
But I cannot imagine that at 16 or 17 age your mother was still taking your temperature in the bottom,
As a child, it was true in all families but you had 18 age, so you were no longer a child
And same for a spanking by your mother at home ?
You said that you were always naked for a spanking but I assume that it was when you were younger, not after 14 age, at least I hope so