Stuttering and voice?

Stuttering and voice? Hello everyone, I have a question. In the last 2-3 month i noticed that I stutter. Not so much but with fear and stress it is lot. What I've noticed since today. I spoke very well today. The stuttering was very little to none. I've been taking something for my fears (natural remedies) for 3-4 days. I don't know if that helped. But I have the feeling that my stuttering has something to do with my voice. My voice is a bit hotter/stronger today. The words come out better and I stutter less or it is less noticeable. Do you know that too? Why is that so?