Smooth,confident and clear.

Smooth,confident and clear. There are very rare small chats I had and I'm continuously having with my colleagues which's literally I visualize and feel I'm a 100% fluent. Like I'm in FULLY control and the way I speak it's very smooth. Those rare moments are sooo good. Am I the only who have these smooth chats? And I really believe it because I'm not out breath that's why I'm this fluent.