Ay, common yan mama, lalo na pag stressed or pagod ka! A few of us moms actually experience that intermittent pain din, sometimes it's just muscle tension or gas, lalo na pag di ka nag-relax ng maayos. Since it goes away when you rest, baka sign lang na kailangan mo ng more downtime, pero para ma-ease your mind talaga, better to check with your OB or doctor just to be sure, especially kung alam mo kung kailan pa siya umuulit.