Don’t apologize. It’s okay to express yourself and there’s nothing wrong with relating your story.

I was diagnosed with ADD (now called ADHD inattentive type) when I was a kid and got basically no support for it because my younger brother was diagnosed with Autism at or around the same time. It turns out my sister also has ADHD (and was diagnosed as an adult), and got no support and stims are fairly common. There’s a lot of behaviors in my own life that I didn’t recognize as stims until years later. It seems a lot of us feel fell through the cracks so to speak.