Is it normal that i talk loudly to myself when i'm alone?

Everytime I am alone in my room I start talking loudly to myself and at the same time I have this deep desire for people to listen to me, like some sort of asking for attention. I also think that my neighbours can hear me while I'm talking loudly to myself about philosophical matters.

Also I put up loud music that relates to my life and my struggles and I have yet again the desire to let the people in my house and my neighbours know about the songs.

Also, sometimes I watch video's on the internet about conspiracies, (for example, Michael Jackson being murder by the higher ups) and while I do so I also put my stereo really loud so people in my house and preferably, neighbours can hear, it's as if I get a power trip from doing that, it kind of borders to megalomania in my opinion. It's like I have the feeling that I have to accomplish something special by doing this, you know...like trying to make the world a better place in some way by philosophizing loudly to myself and letting my family members and my neighbours know about all the horrible things that are happening in the world right now, if you get what I mean.

Is this normal?