Here is how to check if you ever committed your private SSH key by accident: https://github.com/search?q=%40user-name-here+path%3A.ssh%2Fid_rsa&type=Code&r

Here is how to check if you ever committed your private SSH key by accident: https://github.com/search?q=%40user-name-here+path%3A.ssh%2Fid_rsa&type=Code&ref=searchresults