I'm almost exactly the same. I love silence too, it gives me a chance to be at one with my thoughts, gather ideas and contemplate life in general.
I do know how to switch on my extrovert side when needed but most of the time I'd much rather live and introverted lifestyle.
Medium is a great outlet for all types of people but especially introverts. It gives us a space to share our thoughts and ideas as well as interact with others, on our own time.
Thanks for sharing your thoughts and good luck on your Medium journey.