My family thought I was crazy too until I showed them other people on the internet who described going through the same symptoms as me and also talked about how their family didn't notice the smell.
If I were you I'd do like a lot of the other posters have reccomended and stick to a vegetable and low fodmap fruit or if youre up to it no fruit at all just vegetable diet. It'll be really tough but it's the only way to get rid of this disease.