一样的,没区别,你看看字典的解释：
stomachache ['stʌməkeik]
n.
胃痛,腹痛[亦作 stomach ache]
stomachache ['stʌməkeik]
n.
an ache localized in the stomach or abdominal region
以上来源于:WordNet
And the three of you are my first choice.- Really?
Well,there are others who might be more qualified,but the thought of interviewing them gave me a stomachache.
你们仨则是我的首选,-,真的假的?
也许有其他人更加胜任,可一想到要给他们面试我就胃疼.