I have a stomachache. ✬

Tom said he had a stomachache and left the room. ✬

Tom had a bad stomachache. ✬

After eating three dishes of ice cream, Tom had a stomachache. ✬

Tom has a stomachache. ✬

It's obvious why you have a stomachache. ✬

I had a bad stomachache. ✬

I can't stand this stomachache. ✬

I want to see a doctor about my stomachache. ✬

My job is giving me a stomachache. ✬