One of my coworkers didn't show up. My manager called another worker to ask if he could fill in, but he said no.
The reason why one of those coworkers didn't come in (don't know which one) is because they have a headache...

I've been having chronic headaches everyday and still work, even when it got to the point where I was in tears from stress/pain. I still worked when I was sick. What's their ****ing excuse?
My manager didn't ask me to do overtime, but I might have to. I already work 40 hours this week and all my shifts are 7-4, so I'll have even less time to myself today. I don't know what I should do, and I don't trust my own judgement.
I know there's a lot to do in our department, but I don't know if doing overtime is worth it, especially if it risks my health for a **** job I don't even like anyways.
Needless to say, I'm livid. **** my coworkers.
EDIT: I also forgot to take my antidepressants. I thought I'd be okay for now, but I already feel like breaking down. Just... ****.