Delayed PPD

I’ve been fine mentally since my second child was born on october 27th. I was surprised because ppd hit me hard with my firstborn but was pleased thinking maybe I avoided it this time. However, now for the past week or so I’ve been depressed again. I have to force myself to do basic things like shower and brush my teeth and pick up after myself. I’m eating alllll the time to try to soothe myself. I have a doctors appt on Monday and I’ll bring it up then, but have any of you experienced this where you started out fine then got bad later?