So, let's expound a little on this. We're all changing behavior (more or less) depending on what we're doing and who we're with (if any). This is a completely general social feature. In that sense, there's no "true you", but more like bundles of tendencies and patterns of behavior, which you float around in, employing selections and variations of it, dynamically. Now, stuttering is not something that affects us all equally - neither in appearence, nor in influence. This means that some are not likely to modify their behavior due to stuttering, while others might do so most all the time. Of course, this means that your question will be able to yield a variety of answers. I think the important thing to notice here is that behind the question is hidden a complexity not brought forward. Bottom line, who we are varies. Additionally, a stutter isn't a singular modification of a singular 'you', and the matter of comfortability depends on a lot more than just - the stutter. We're comfortable inasmuch as we're comfortable all in all, in the various relations we enter into, subject to the same circumstances all around. And if a stutter affects you gravely in that regard... this is something you ought to address, just so it doesn't drag you down.