Nesting or just energy??

Since I woke up I haven't been able to stop iv rearranged my boys room, cleaned out the pantry, cleaned the living room and kitchen, put the pack and play together and moved things around in my room to fit it, done the laundry and dishes. Lately i haven't had any energy and I'm lucky if I can get out of bed. I'm just wondering if you ladies think I'm starting to nest or if it's just because I know these things need to be done. I'm 36 weeks tomorrow, and I didn't know what was going on when I was pregnant with my daughter 7 years ago.