I'm a stutterer and English is my second language so I get even more nervous when trying to speak, it does affect my work because I can't really communicate what I'm trying to say without going back to a whiteboard explaining a programming concept or something so I usually resorts to not saying anything even when I know what other people are saying is bs.

I dread making or taking phone calls and even though I'm confident on my programming knowledge the anxiety prevents me from looking for another job where I can be making what I think I'm worth, on the flip side I would like to be a salesman talking to people all day and not having a desk job but my anxiety prevents me from doing so, anxiety worsen my stutter which in turns makes me more anxious ( a never ending cycle)