Stutter/clutter has been worsening over past year—is it normal for it to show up more in certain situations?

Stutter/clutter has been worsening over past year—is it normal for it to show up more in certain situations? I've had a very slight stammer for a long time, but over the COVID-19 pandemic, it has significantly worsened, along with cluttering symptoms. However, I've noticed that these display themselves most prominently in particular situations, such as presentations, interviews, and interactions with people I'm not as familiar with or whom I'm nervous around. Is this normal? I'd not looked into stuttering & cluttering before as my symptoms were not as discernible, so I don't know much about this. Thanks in advance!