YOU SAID:

if i eat lots, i could become the fattest person ever

INTO JAPANESE

たくさん食べたら、今までで一番太った人になるかも

BACK INTO ENGLISH

If I ate a lot, I might be the thickest person ever

INTO JAPANESE

私がたくさん食べた場合、私は今までで最も厚い人になるかもしれません

BACK INTO ENGLISH

If I ate a lot, I might be the thickest person ever