stomach oi..stomach

"y no go to skul?"
"stomachache"
"y cant go out?"
"stomachache"
"y didn do the project?"
"stomachache"
"y didn blablabla?"
"stomachache"
stomachache stomachache stomachache....
always the same reason...stomachache
gastric, cirit-birit, indigestion n blablabla...
one of them will happen once a week...
everytime i tell my mum, she will start to sing...
i listened to it every week...same song
my fren, my parent, my family...start to think that i lie to them...
but i didn..i really stomachache lar...believe me, please..
haizz..i really fed up with this problem maker stomach..
what to with it ar? somebody teach me..