Should I look into getting a diagnosis?

Hello first time posting here!

Im hoping to get the opinions from people who have been diagnosed with Autism themselves, too see if my concerns/hunches are worth looking into? so I just want to go through my quirks and a brief life experience to try to get more of a "Yes you should do this" or "No its not worth doing"

My husband who has ADHD, originally recommended I also got tested for it, however I can pick up on social ques and read people, which tends to be against the normal for ADHD people and looking into Autisum I share a lot more traits with that than I do ADHD, though a lot crossover into one another, I know, in addition a friend who is very certain he is autistic (but no diagnosis) thought I have it. 

I'm a 29 year old woman, and quite frankly, I've never known who I am as a person, nore do I have any real grasp on how that is meant to feel or is it even meant to feel like something to begin with? I've always had the sense of just being a woman with a name and that's it. I have sensory issues, specific sounds like fire alarms, ultrasound alarms like those cat alarms that try to keep them of peoples gardens, that people arnt meant to be able to hear, children screaming (happy or otherwise) and crying and shoes on a waxed floor. Those sounds genuinely anger me.

I don't like people touching me, even my family, I'm only comfortable with my husband doing it, I hated having to hold someone's hand as a kid family or otherwise, I didn't like the physical contact and still don't, bar my husband, but even then I seem to have a limit as I eventually shift away.

I don't really like people In general to be honest, I'm quite misanthropic (due to an abusive childhood) as a kid and now, I want to be left alone to do my own thing, I didn't want to interact or talk with kids, it literally did not interest me at all, just listening to them would exhaust me of my already depleted energy again due to my home life. 

Eye contact also makes me uncomfortable.

I did terrible in school and collage, subjects that did not align with my interest I would automatically shut down, zone out and look at weird stains on the walls and little bits of dirt on them and would connect the dots to make images in my mind. As a result I was put in the low bracket, meaning I could only get a maximum grade of C in my GCESE'S, In biology I got maximum marks, learning about how plants work and nature fascinated me and I absorbed it like a sponge, I got the maximum marks I could have got on that paper, but due to being on the lower level I could only get a C.

I was always told I was gifted in art, but I did not do well with it at school, but I enjoyed doing my own projects for tests, I did not enjoy the book work, book work consisted of "here's x theme, and y materials, do something with them that relate to the theme" I hated being limited by those and didn't enjoy them, when a teacher would make a suggestion, likely to improve the final grade of the book work (as it tallied onto your project scores at the end) I didn't want to listen to it as It was boring and did not interest me.

I can smell things may husband cannot, on occasion if he's been popping spots, I can smell the blood from upstairs, when he's downstairs. 

I cannot stand any change, whatsoever, I hate it when I work in a place and pop out, come back and my stuff has been moved around, I cannot stand life changes, moving house, jobs, even if that change is factually better. 

No matter what job I do, I constantly make mistakes, people get frustrated with me because I genially forget things all the time, my short term memory is abysmal and in a few jobs its gotten me in trouble with management 

About 5 years ago I was diagnosed with Mild ptsd and depression, which I found out, women tend to be treated for first before being diagnosed later with autism.

I could put more of my issues and quirks, But I don't want this to be too much longer than it already is :,) But with this, in your opinions, should I look at getting a diagnosis?