Secretion
Discharge
noun, verbal noun, の adjective
Part of you is starting to secrete some kind of secretion. It's kinda gross, so maybe you should go to the doctor to check if it's normal.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
胃液は1日1～2Lも分泌されています。
Around 1-2 liters of gastric juices are secreted each day.