MS OFFICE MISSING FOLDERS

Have just connected Bluetooth and phone today and it asked if I wanted to
configure it with MS outlook which would be helpful. All seemed to go OK
(complete beginner!),

But then I went back into Outlook and found that many of my folders have
disappeared (the ones I had filters for) but also many others. Now only have
basic boxes (in, out sent etc). I have no idea how or why this happened.

OK great, I have my calendar synchronised with my phone but I also need all
my folders back... Any help much appreciated