I have been struggling for six months with balancing rest and work. I think I have slowed my healing because I have worked too much. If I could go back, I would rest more, your brain is more important! If you are experiencing symptoms, back off. Especially if your employer is understanding.
Interestingly, grocery stores and shopping in general is one of the worst things for me. So if I need to get through the work week I make sure to stay away from them.
Good luck
Su seb