I that's just use being impatient and being irritated. That's common with Te in general I'd say.
It'd be impossible to know if you are shadowing, because the shadow is based in the unconscious. The shadow functions of the ENTJ are Ti-Ne-Si-Fe, which is an INTP. So, our unconscious acts like an INTP. I don't really buy this, but that is one theory.
Alternatively, our functions of Te-Ni-Se-Fi can be seen a backwards ISFP. I don't act anything like an ISFP. I suck at art, and I am a terrible with colors and shapes (except in math). Can you explain your OP some more?