Are you a selfish person?  I had to really think about that when caring for my dad with Dementia because I found myself needing to remain physically, emotionally, spiritually and psychologically healthy. Some people will make you feel that self-care is selfish however I realized that in order to remain well enough to care for my dad, it was okay to be "selfish sometimes."  

I am not a selfish but do find myself having to be selfish with me in order to be able to care for someone else.  

You may need to be a little selfish at work when they want you to act like you don't have a family!