DD2 started squirming and thrashing around about 4 hours before I went into labour, and did it for almost 2 hours in the early hours of the morning. It felt like she was turning and twisting, kicking and punching like crazy, I was freaked out thinking she was turning posterior again, so I spent the entire time doing the optimal baby positioning exercises. I've been told she was preparing for birth, she must have done well because she was born 1 hr 45 min after my labour started.