is super super dark , but not tarry black, stool normal for a 15m old? her movement first had light brown then the dark ones (in diaper). I am worried because yesterday was biten by mosquitoes and has puss bumps and discoloration also. (bumps that remind me of a spider bite). And those three symptoms sound like dengue shock syndrome to me, but no fever. Can this be the beginning stage of blood in stool? and can you have dengue shock without fever? Thank you.