I think I need to stop working these long overtime hours. It's a Saturday and I volunteered to come in for 4 hours, but upon leaving my place I think I'm actually sick. Like weak, flu like, low energy sick.

I might try to stick it out for 2 hours and email my boss to let her know I didn't complete what I committed to, but would that look bad for me? I've been pushing 55+ hours every week for a while now, all I want to do is sleep.