YOU SAID:
I have knots in my stomach
INTO JAPANESE
お腹にコブがあります
BACK INTO ENGLISH
I have a bump on my stomach
INTO JAPANESE
お腹にこぶがあります
BACK INTO ENGLISH
I have a lump in my stomach
INTO JAPANESE
お腹にしこりがあります
BACK INTO ENGLISH
I have a lump in my stomach
Well done, yes, well done!