A flower is not self indulgent when it takes up water.
A car isn’t being selfish when it stops for fuel. It needs to do this so it can serve the situation as well as possible.
There are lots of people who are super at putting other people first, so much so that they sometimes forget about themselves (myself included!). But the best way we can continue caring for other people’s needs is by making sure we’re in the best condition to do so – namely, remembering to keep on top of our own needs too! I’m sure all the people we help would prefer us to keep healthy and happy too. Let’s not forget to look after ourselves 🙂