YES. All the movement of sex makes my stomach start to BURN when it's empty. Sometimes I have to stop so I can eat something, or else continue in pain.
If I DO manage to climax, it feels like my stomach clenches up and then relaxes - releasing a flood of FIRE in my belly - and this makes it difficult to continue long enough for my partner to finish.
I've definitely had moments like this! If my tummy is growling and I feel so hungry there's no way I can focus enough on sex. I have to get up and go eat something. lol. I never really thought about it until I saw this post but it's true for me.