Do I even need to say it?

So I have a worrying and confusing situation. My one fam has a problem. Last time I played em, I paused it. They were happy & healthy, plenty of food. Then today I come in to find an upset, tired, hungry, low-health family! And no food! And at the bottom of the screen, GAME PAUSED. This has left me confuzzled. They're better now, and that's good! But I think this is a problem. Maybe someone can figure out if it's a glitch or I'm just crazy! (Or both... ) It'd help me if I knew what might've caused this.