pkpk was crying last night and now her eyes are swelled up.  Tears are strange; you cry when you're happy and when you're sad.  This discussion of tears reveals a terrifying plot!
That's not what crying yourself 
to sleep means at all.
Eso no tiene nada que ver con llorar hasta dormirse.
Creo que no lo dicen por lo que pasa en tu caso.
Acho que não é bem
 esse o significado disso,