Stuttering only when talking to people

Stuttering only when talking to people This may sound weird but I wanna know if anyone experiences the same thing. When I am talking to myself or recite something out loud and alone, I do not stutter at all. But as soon as I am talking to someone or someone is listening, I get a crazy amount of blocks! I don’t understand this because I know that I can speak completely fluently, just not around other people! Any ideas on how to help this or if anyone else experiences it?