Is it normal to have a fetish to anything relating stomachs?

Since I can remember I’ve always had an interest in anything stomach related. Even as a young child, reading books or watching films where the character would be sick with something involving their stomach, I would get excited. It wasn’t sexual then of course, but as I grew older it became slightly sexual. No, not sex with vomit involved or anything like that. Merely turns me on. Like for example, a guy with a stomach ache, vomiting, or nausea turns me on. Not the vomit itself though.
And taking care of someone who’s undergoing any of those things also but it doesn’t exactly turn me on, but it’s kind of like a non sexual fetish. I though would never purposely cause any of these to anyone. I haven’t told anyone I know in person and don’t plan to. Side note, I’m a straight female.