Does this happen to others?

Does this happen to others? Hi Am 59m, had a horrible stutter when younger, but now it only lingers. I have ADHD and my mind runs reaaaallly fast(!) and as a result, am always stumbling over my words... However, sometimes when I'm speaking, i am QUITE fluent, no issues or blocks at all... Then, if someone interrupts me... asks me a question (mid thought or mid sentence or mid "idea") or asks me to repeat myself... EVERYTHING falls apart! Blocks... stuttering... can't "refind" a word i JUST FREAKING USED!! I hate not being flexible in conversations, but i know... once i get interrupted, I'm that anxious, scared 5th grader who almost can't get a word out to save his life! :( ? Others??