Hello, Mike125

you said only one line, but it is loaded. No wonder you feel like you're going nuts. Living with mental illness makes you change the way you look at things and feel like you are not part of the world. As if you lived in another dimension, and none of the people you see everyday is going to understand what is happening in your life.
I tend to think no, there are not normal people out there, (or in here) the more you learn about BPD and other dissorders, the more you understand and can relate. I mean, what happens to them, it happens to all of us in a much smaller degree, or in a way that we can easily control or dismiss and they can't. But it is not as if they were a different species, we are the same with different flaws and strengths.
I bet they take all your life, and you don't get much appreciation for it. You get... .other things. Tell us more about you. Some of your difficulties will be shared by a lot of people here. And at least we can listen.
Take care.