When Does the Fog Lift?

I knew the first year of raising quadruplets would be a blur. I have memories of it, but some things just run together. I've laughed about "mommy brain," but, seriously, does it ever go away?
Hubby will tell you I have/had an excellent memory. During arguments I used to remember petty indiscretions from years ago. Now I'm lucky to remember what I had for breakfast.
I am now easily distracted. I go upstairs and by the time I reach my destination I have no idea why I'm there. Lest you think I'm suffering from memory loss, let me point out that the journey from point A to point B is not a straight line in my house. Often I head upstairs and have to stop to take one of the girls from the bathroom, find a missing blankie and/or stop a fight. Then on the way upstairs I will likely have a laundry basket full of clean clothes to put away. After I put the clothes away I'll walk into my room and think "hmmm. Now what was it I wanted in here??"
I have become that parent who shouts out three names before I figure out which daughter I'm addressing. They think it's a game. They think it's funny to correct me.
Some days are better than others. For instance, I remembered three days before our recent wedding anniversary to buy Hubby a card. He didn't remember to buy a card until that day (I'm just giving him a hard time because he has always had a bad memory!) The fog seems to be slowly lifting... but I'll be glad when it's completely gone!