Outlook stuck on "loading profile"

Short answer:

Closing Office Communicator (Lync) fixed it for me.

Source:  https://answers.microsoft.com/en-us/office/forum/office_2010-outlook/outlook-2010-stuck-on-loading-profile/4ae77263-3173-4ac7-9758-e4483b16a45a

I had previously cancelled a Data Integrity check.  Next time I opened Outlook, it wouldn't make it past "loading profile".  Closed Lync, and it went back to Data Integrity check.  Think I'll let it finish this time.  :)