这是英语里面一种表达句子表述不同方式的方法.
表明There's nothing much wrong with you.和 There's nothing much serious with you.
意思相近或用法相同.
There's nothing much wrong with you对你来说没有什么麻烦.
There's nothing much serious with you.对你来说没那么严重.
差不多就这个意思吧