Hello! I'm a 15F and I actually relate to that as well! It's like something's trying to block me from getting my words out, and I have to force my way through it if I want to talk at all. I've been diagnosed with a stutter since I was 4 years old, and I've had these types of blocks since I was at least 10. Stuttering can take on many different forms, and it's not really possible to say what "counts" as a stutter and what doesn't. Therapy can also be a good option when it comes to managing stutter anxiety levels and improving confidence in social situations, if that's what you're interested in!