Is it possible to develop mild stuttering?

Is it possible to develop mild stuttering? I've never really had a problem speaking and I'm often asked to speak in front of large crowds. Sometimes, when my brain works a little faster than my mouth I'll end up having problems asking a question but if I stop talking and collect myself I can get it out. Lately, It's been happening more and more often (a few times a day compared to once or twice a week). I'm aware that this is only a small problem compared to some severe stutterers, so I feel bad bringing it up on here. But I am curious, is something that I've done/Am doing causing this to be more frequent?