no no no you are not stupid really, it happened with me more than once before, but did you save it before it was removed ? seek for it in your works and if you didn't find it i guess you have to re write it again, i know it's annoying and hard but that's the only choice i hope i did you good and helped you take care beautiful and never lose hope
oh ! btw i hope you are feeling alright now, i saw your status :)
get well soon xx