geri(o)suru
げり（を）する
to have diarrhea ; to have loose bowels
Example
ここ 2、3にち、げりして います。
I've had diarrhea for the last couple of days.
geri(o)suru
to have diarrhea ; to have loose bowels
ここ 2、3にち、げりして います。
I've had diarrhea for the last couple of days.