Not being heard is no reason to be silent. ---Hugo
Our rustling leaves all respond to the wind and rain. Who are you, so silent? ---Tagore
People who don't know you well think you are a silent and shy person, and people who know you well think you are a taciturn person. You said, in fact, you are a nagging person. You said everything you wanted to say, many times, many times. But no one heard it.
You say it over and over again to this or that person in a space where you are the only one speaking, never getting a response. In this world of millions of words, you remain silent.