Are phobias alright?

Today afternoon instead of class a surprise party was organized for my classmate turning 18.

Everything was cool and I was being a happy wallflower.

Until about 5 minutes of the party a balloon popped, and I always thought my fear and sensitive emotions with desperate need for distraction when it happens is normal because I'm antisocial in the first place and ballons only pops at parties (the most attention grabbing environment)

But when every 2-15 minutes having a balloon popping I began to be even more on the edge and the feeling of anxiety overwhelming me to paranoia until my feelings turning so sensitive that I had to keep it on check conciously after cursing a friend for bumping at the table causing my phone to almost slip, I didn't want to ruin the party or hurt someone's feelings.

I began shaking and a girl opposite noticed it was right after a balloon popped again and that I didn't seem to recover from it, she asked if I have a phobia, I told her I don't know, she told the teacher to tell everyone to not pop the balloons anymore.

I began crying with relief and residual fear after excusing myself to the corner pretending to get something from my bag, the teacher started to comfort and ask me what happened and I told her I was very scared, she seemed to understand but how she repeated "they were just having fun" made me feel faint even more.

So after this I was able to discover I do have globophobia, while it's in control continuous contact with balloons popping sound may have caused me to be hysterical if it continued.

After I told my mom she was looking at me as if I'm sick and being childish, told me I'm too grownup for this.

It's alright to be afraid of rather unexplainable things?
Are phobias alright?
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