Nesting Instinct?

Re: mood swings: Okay, first I want to kill everyone who causes the phone to ring. Then I miss my friends and invite them over all weekend. Then, after picking fights with my hubbie and not letting him get within 10 feet of me for months, I suddenly am on fire when he's near me and can't get enuf. Which passes very quickly. Now, after increasing fatigue that feels like I have weights added to every limb for the past weeks, today I'm suddenly light and full of energy. I've been cooking and cleaning and it's bizarre. Just today, tho. It wasn't long before I pooped out in the evening!