Why do I love music so much?

I don't know why, but the past few months ive really gotten into music. I just love everything about it. I'm a 14 year old guy. Like, I ALWAYS have my headphones on. I have two pairs of Skullcandy headphones for optimal listening pleasure (that's exactly what I think too.). I listen to almost everything from indie like dinosaur Jr and Yuck, classic rock from Pink Floyd to Led Zeppelin, Metal like System of a Down and Slayer, experimental like Team Sleep and Puscifer, techno like Deadmau5 and Daft Punk, shoot, even all the way to Snoop Dogg and 2Pac. I've maxed out my iPod with music (I'm listening right now). But I just feel good when I listen to music. But I've never been this into it, like seriously I listen to indie to dubstep. I just feel like there's music for every mood. I honestly listen for 3 to 4 hours a day. I heard that music makes your brain release dopamine, which gives you the "chills" which I have frequently. Should I begin to worry? Is music a drug that's killing me? Also, I'm much higher in my studies and I play piano, bass, guitar, ukulele, cello and drums. I also skateboard and mountain bike.