Autistic adult - seeking advice on load/unbearable noises

Hi all,

I was wondering if anyone can help me/give advice on this matter 

Yesterday there was this alarm going off in the shop/shop next to me (idk where it went off exactly) but it was insanely load. Loader than the fire alarm at work. We were made to leave the shop while was going off with the door to it closing (idk what was going on other than someone saying it was a fire alarm and wait for instructions, mind I think it was a faulty alarm)  

Anyway, this alarm was very load. Too loud for my liking. It made me feel dizzy, scared, a bit sick and made me wanna curl up in a ball and cry. Luckily I was with someone I know, so I was clinging onto them when it was happening. Also it made me start having an attack, I um unsure on how to describe it other than it felt near enough like a panic attack. I would normally cover my ears if a noise is too much for me but unfortunately I was unable to do so this time.

Ofc I tried to calm myself down by using breathing technique, but it's the noise was unbearable

I found it a bit overwhelming on a busy buss with lots of people talking. However I've been told by my parents that I never liked load noises, but honestly I don't remember and just don't understand.

I am diagnosed with Asperger's (Autism) when I was about 8 and now in my mid 20's I'm learning more and more about myself. Along with trying to learn how I can help myself in these situations 

Is there any ideas how I can help/cope with such noises in these situations other than breathing techniques?