I’m having trouble finishing sentences properly and I don’t know if it’s something to do with my stutter

I’m having trouble finishing sentences properly and I don’t know if it’s something to do with my stutter So basically, I’ve had this thing I’ve noticed recently where I’ll just be talking to myself and only the first half of my sentence comes out and I have to repeat the first half so many times for the rest of the sentence to come out, it’s like I’ll be speaking, I’ll say the first half of the sentence but the other half is stuck in my brain. I can literally SEE the words that I’m trying to say but they just don’t come out unless I repeat the first half loads of times. I just don’t know if it’s got something to do with my stutter or if it’s like a whole different thing I’m just kinda confused. I also have no idea if it happens when I’m talking to other people or if it just happens when I’m talking to myself because I’m not gonna lie I don’t really speak to people that often lol. So yeah, I’m sorry if this is a bit repetitive it’s quite late and sorry if it is just a bit useless but I’m just confused. Also, just to clarify, my stutter is very mild when I’m talking to other people unless im nervous/stressed out, but when I’m talking to myself it is much worse and yes, I do talk to myself. That might be a bit embarrassing but I’m just being honest.