I am totally starting to feel like the problem child. LOL

Last night Mac Mail was working just fine, all emails from my various Gmail accounts there and working. Turn on the MAC this morning, click on my Mail App and it wants me to create a new account. I.E. It is treating loading like there are no accounts. I searched for awhile and found the my accounts, but I can't figure out how to import them. I see there is an import feature, but when I try to navigate to the mail library, it isn't showing up in the navigation pane. What am I doing wrong?