I'm a big fan of all kinds of music and I often get a similar feeling when hearing aggressive or violent toned music.
I've never liked anything particularly loud or angry sounding anyway, but now I notice it more and at times become physically ill when listening to any type of "death metal" or "grunge." I sometimes wonder if perhaps such negative tones or sounds actually create or attract a negative energy into the environment. Either that, or maybe we're tapping into the negative emotions of the ones who wrote such songs? After all, some of those lyrics can be downright depressing! xD
Perhaps try listening to different types of music to see what makes you feel uplifted and energized (or relaxed) rather than sticking to what you have always liked. You might find yourself running into a great type of music that you never thought you would enjoy.
Best wishes!