This thread has hit a nerve for me, I've been thinking a lot about it over the course of the day. To preamble what I'm about to say: I'm not condoning aggressively inserting tampons into a 10-year-old. I think it was misguided and the adult should have just given her a pad. Period. (No pun intended.) Do I think it was sexual abuse? From what has been described, not by a long shot.
1. This conversation is starting to beg for a definition of trauma. Is trauma everything we think back on in our life and cringe about? Everything that elicits unpleasant memories? Is it being reminded often of something not-so-good happening to us? Or is it an experience that has impacted, altered, fundamentally changed who we are as a person - something without which we would be someone else? Is that the case for you, Jojo11?
2. I think - and here I'm glad this section is anonymous - that we live in a time where we have enough resources and intelligence to be able to go back and pathologize our childhood. I know many people who are seemingly on a crusade to figure out the source of their, mostly, nebulous struggles in life. All of them come back to something "happening to them" - a mean brother, a demanding mom, a piano teacher who sat a bit too close during lessons. They believe they have been severely traumatized. It's a mixture of misinformation, a lot of time on their hands, and a rampant PC culture (nope not a Trump-supporter) in which all and everything is the cause and result of pathology. It confuses people as to the real severity of what has happened to them over the course of their lives and it confuses people as to the real source of their troubles.
If something happened to you that was traumatizing, something that impacted the fabric of your personality - you know it. There is no coming onto a forum and asking whether or not you've experienced trauma. Without wanting to minimize what the OP has gone through - I firmly believe that pain can not be measured or compared - and also taking into account that there may be far more to this story than what has been described, I'm inclined to go with the notion that having an adult whom you trust enough to help you insert tampons, who does not immediately back off when things get rough, is not in line with abuse.