I’ll be honest, it sounds like you need to take a mental health day and relax a bit.

For those of us who work in the tech sector / “information economy”, it’s just as important to take care of our mental health as it is our physical health. Would you stigmatize someone who needed to take a day off because of back pain?

It doesn’t seem that all employers “hate it when people do this.” Perhaps too many still do, but hiding the issue isn’t going to help it get any better.