Ability to search your profile page for prior discussions on issues that recur

Have you seen a question and thought "I know I've had this discussion, or a very similar one, before"?

Have you seen a question and remembered having a discussion with examples all worked out?

Have you seen a question and remembered there was "something" that had to be considered, but you couldn't remember the details?

This idea is to add a search function to the profile page so you can search your own prior discussions. I realize that good tags are a better approach, but discussions don't always get good tags applied to them, so this would be an additional tool to find them.