Depression hit different when you have kids

I can't tell if I'm lazy or actually depressed. I have a 3yo and 5yo and every morning I'm exhausted even after sleeping 8 hours. Just scrolling on my phone while they watch TV instead of playing with them. My wife works full time and I'm home with them - she doesn't get why I'm tired. How do you guys know the difference between burnout and actual depression? Thinking about talking to my doctor but also feel stupid complaining when I "only" work from home.