

Unfairly Fired ??
So like the title says I have questions on if I was unfairly fired.
PSA - I have a disability that limits my movement and causes me severe pain. + this was my first real job.
To give some background I started working at a Pizza Hut in the first week of June. Everything was going fine, and I had been scheduled regularly. The issue starts on July 3rd. I realize I am scheduled on July 4th from 4pm - 10:30pm, I had told my manager I was not willing to work past 10 pm due to being a minor and not wanting to make my parents/partner drive that late at night. I pushed it aside for the night and woke up the next day in severe pain and it was hard to move. So like any person would, I called in sick. I messaged my manager telling him I cannot come in to work due to being sick. He then messages back soon after telling me I am fired.
(Pictures below)
The thing that is upsetting is that I could not control my body and ability to function that day. He had asked for a 2 hour grace period to call in sick so he would have time to do whatever. I had done what he asked and gave him and the shift lead a 3 hour notice.
The part that makes me unsure is that I had also previously called off once before. The reason I called off work that time was due to my girlfriend getting into a wreck and having to take care of her, but he didn’t reply to the message.
My family tells me it is technically allowed since where we live is a “no-cause” state or something. But I have a bad feeling that this shouldn’t be allowed. I am not posting this to sue or do anything about it, I am posting more for reassurance that this is not my fault. Or if it is to get more information on what I could do better next time.
Sorry if this is not the place for this type of post 😭