What can be the reason for stutter starting to happen later in life?

What can be the reason for stutter starting to happen later in life? So my stuttering started only in a last year or so. Most of the time I don’t even register it happening, I just realise after the conversation that I’ve been repeating words halfway through saying them etc. I have a couple theories for why that’s the case, but none are really backed by science/doctors/whatever: - I had a case of long covid. It was for over a year, I had troubles breathing, my heart rate was high, I was fatigued and most importantly, I had really bad brain fog. Sometimes I couldn’t even form logical sentences as I’d forget what I was saying halfway through. My memory was awful, I was thinking slow, I dissociated a lot. - During that time I was also really depressed. I’ve tried a lot of antidepressants until I found one that works. Maybe they messed up my speech idk. I also take sleep meds (also antidepressants) and adhd meds. Overall I take a lot of psychiatric medications. - I haven’t socialised a lot since the pandemic started. First online classes, then I finished high school and had a gap year, while I didn’t keep in touch with my friends, now I’m in college and being honest I don’t know how to socialise and make friends. Maybe it has something to do with not being used to talking. - Anxiety has gotten worse in some ways. In some ways it’s better, as I know how to power through it I guess, but more and more things make me anxious. I don’t know. Maybe it’s because all of the reasons I listed here. Maybe it’s something entirely else. Maybe it isn’t something new, but I’m just noticing it now. It isn’t the end of the world, it doesn’t really have a huge impact on my ability to speak/communicate. It’s not something others pay enough attention to, as no one pointed it out to me (and my family especially is brutally honest about this stuff). I’m just curious why it’s happening and what are your thoughts on it.