My husband overshares. Its a process but I doubt it will ever fully change. It’s a life long thing. When he tries hard not to overshare then he just doesn’t say much and comes across aloof. He is opposite of aloof but if he forces himself to keep his mouth closed it’s because he knows he’ll overshare when he opens it. So there is no middle ground. It’s never “let’s just share a bit.” But it’s a work in progress

In most cases I think and have read that oversharers do it subconsciously because of various anxiety disorder. Don’t want to diagnose but person could be anxious in the absence of diagnosis.

I don’t think that it’s a valid question why wouldn’t you want to change. Some things are just how they are. You can only do so much in changing who you are

As about this woman you could still contact her or wait when you two are hanging out you could say “ hey btw I do not have ADD, last time we spoke you said I do. I don’t”. Not in accusatory or argumentative tone, just as a passing comment. I’d not mention her projecting as you just can’t know that. Otherwise it’s accusing each other of things and will cause more friction. Or you could maybe tell her your feelings were hurt when she labeled you ADD fit no reason .

I do have to say that ADD diagnosis doesn’t mean one is impulsive. Not at all. Impulsivity might come in with ADHD. Attention deficit disorder means just that. Difficulty sustaining attention. The person could be calm as a clam 24/7.

Overall not sure why she said you have ADD just because you were distracted once and she doesn’t even know you, it takes a bit more than that. It’s like saying you like to clean you have OCD.

Actually she might be impulsive one here as she blurted you might have a diagnosis even though she doesn’t know you well