Please be wary if nobody else in your life besides your husband ever brings up things that you don't remember. If you had very mentally/emotionally abusive/manipulative parents growing up, there is a significant chance that you wound up with an abusive/manipulative partner. And if nobody else ever brings up things you can't remember, then your husband might be gaslighting the **** out of you.

However, if you experience this issue in multiple relationships, at work or college, etc, then it might be a case of DID.