There's nothing wrong with you.
You don't like live performances. Doesn't matter WHY, just that you don't like them.
I don't like tomatoes. To each their own.
Now if you start having panic attacks when someone mentions a live performance, THEN you may need help.
Until then, support the music however you care to. Just because you might not happen to like seeing a perfomance live isn't going to make you less of a person or them less of a performer.
M