Being able to describe oneself with a word or term that is shared with others can help an individual form a community with people who might have similar experiences.
While labels are limiting, they can also be useful or even liberating sometimes. It appears that you’ve been thinking about this a lot, and though you profess that you don’t like labels, you still find yourself searching for one.
We live in a society that, unfortunately, likes to put people in boxes with simple labels: gay, bisexual, black, white, etc.