Amber, great topic, and thanks for addressing it! I've always been a bit "spacey" but lately it's been pretty bad. I locked myself out of my car today while going into work I'm a driver. Generally I need my car to get my job done. Thankfully I was training in someone else's car today, so no worries. But I can't tell you how many times I've done this same stupid thing - leaving the keys on the passenger seat and then locking the doors. Then looking at them, just like a stunned bunny (your words - nice image, thank you.)
Like Tricky, I find that my balance tends to be worse during these foggy times. I find myself stumbling up and down stairs, spinning (sometimes physically, sometimes thru vertigo,) falling, tripping, you name it. I laugh it off but it's embarrassing. I don't feel like an adult when these things happen, I feel like an idiot.
I don't have an answer to this yet but I'm sorry you're experiencing it and working on building a business while experiencing it. I'm guessing that plenty of sleep might help some. I muck up even more if even the slightest bit tired. (And, like others here, I also forget words that I know. I mean, I forgot the name of "water," for goodness sake.) It certainly looks as if lack of good sleep is one sure way of bringing on extra "fog." That means naps, if you can possibly squeeze them in, even if when you get home.
Like others here, I sometimes find that switching to something else for 15 or 20 minutes helps to clear some of the cobwebs. Like doing a puzzle, reading something non-irritating, writing something fun...something to get away from the tight wad of necessary but missing info that is enclosing your mind.