Got SA'd and lost my job

So Saturday morning I end up at the ER after getting SA'd. I get on emergency PEP, get a doctors note, and get discharged. I send the note to my employer (I work in the service industry) and I'm immediately removed from the schedule for the entire week, even though I've been cleared to return to work for the coming weekend. I let my employer know that I'd like to return to my normal schedule and they do not reply. I then see in the work group chat that there's someone new on the schedule who will be replacing me.

I've been at this job for almost a year. I really love my team and the place that I work at. I've worked every single holiday and given them so much of my time and effort. I've been a model employee and was training someone the day before I got assaulted.

I'm so shocked and feeling really defeated. I don't know what to do, how to follow up with them, etc. I was already so overwhelmed with processing the trauma of the attack, the ER visit, and filling the emergency PEP prescription the next day (it turned out to be such a nightmare).

Where do I go from here?