My son has a stutter, should i bring it up with him?

My son has a stutter, should i bring it up with him? My son is 7 years old, he has had a stutter since he was 3 years old. I remember the exact moment it hit us. He was trying to tell us something and would trip up on his words, then he suddenly stopped speaking. It was almost as if he suddenly understood this wasn't just a toddler thing, he noticed he had a problem and so did we. We took him to a speech therapist, we called it speech training, and for him at that age (3 or 4 years old) it was a fun activity. We used the lidcomb method, it helped but didn't eliminate the stutter completely. But it helped enough that everyone was comfortable. He is confident and talks alot. He is 7 now and it seems to be getting worse, he's still confident to speak but we are concerned that this is the age that other kids will start pointing it out to him. I don't think he knows he has a stutter. A month ago, we took him to another speech therapist as the previous one wasn't there. The therapist, though well meaning, treated him like a toddler, and seemed to try and see if he hqd autism and he doesn't doesn't want to go back. I believe we can work on it with him at home, but the main question is - can i tell him he has a stutter? He doesn't want to do speech therapy, and I'm concerned of pointing out something that doesn't seem to bother him