Is this normal?

I am so fucking tired!  That's all.  I came home from work Monday and took a nap.  Tonight it took all I had to get through the front door and crawl into bed. 45 minutes later my husband came home.  He probably thought I had downed a bottle of chardonnay and checked out for the night.  No. Just me being sober!  I think I'm sleeping more now, in the last 16 days, than I did in one month of non-sober life.  So I ask, is this normal?