My Emails Have Disappeared... AGH!!!

I have NO idea what happened and I have no idea how to fix it, but I had fallen asleep around 5:30pm today {courtesy of some Yorkies waking me up at 2:15, 4:38 and 6:37 this morning} and woke up around 7:00 and started to make dinner.  Bill asked me what happened to all my emails, I must have been working really hard this afternoon.  When I asked him how many I had, he said 22, which I knew was