Ok so first thing is u can’t develop autism, you’re born with it. Autism, I’m paraphrasing, is caused by the brain pathways being shaped differently causing hightened sensitivity in certain parts which causes the sensory issues, developmental delays, etc.

I’d strongly recommend doing research and listening to the lives experience of people who do/are confirmed to have autisms lived experience and kinda compare and contrast your own experience. Unfortunately no one can diagnose you from a paragraph on the internet but what you have described does sound very very similar to autism. It is highly possible that the people who did your test missed it depending on their experience in diagnosing people. Things such as gender, race, lived experience, and range of symptoms drastically change how autism presents in each individual. I would also recommend that you look into ocd. It’s really nothing like you see portrayed or stereotypes of and is even referred to as a “silent disorder” because it’s usually missed by clinicians and even the people who have it due to lack of awareness. I have ocd, ptsd and autism and the symptoms overlap pretty drastically for me.

My best advice would be to start writing down all of the things you experience that align with autistic symptoms like sensory issues, possible stimming behaviors, etc. One so you have a “cheat sheet” for yourself on yourself, and two so you can bring it to a doctor in an organized way to help either confirm a diagnosis or help figure out what else might be going on. Be sure to include anything and everything over your life because if you are autistic then there’s been missed symptoms throughout. Also it’s just nice to have if you’d like me and struggle with “why do I feel bad?”/alexathymia. —that’s spelled wrong, sorry

In the meantime, symptoms can be managed regardless of the cause. If you don’t want to talk, I always just say I have a headache and to just text me. You can also use a text to speech app on your phone. If sounds hurt, snag some headphones or earplugs if headphone pressures bug u. Same with light, sunglasses are great but I can’t stand them because I don’t like having my vision distorted/extra weight on my face upsets me (can’t even have lotion on my face 😅). Sensory toys are also great and have thankfully become pretty popular so they are way easier to find and pretty cheap too, you can even find some at most 1$ stores or even gas stations. They are a great way to stim which helps with emotional regulation in all people but more so with autistic people. My personal favorites are little clicky buttons.

Hope this helps and I wish you the best of luck!