I know what you mean. I always had awful back pain and insomnia. Im 39 weeks and have been dilated to a 5 and fully thinned out since Tuesday. But lately my back feels great and sleep has been the best it's been in a while plus my sex cravings came up a lot. So I tell my husband that I think this is the calm before the storm. Specially because my 1st is 3 and a half, having 2 will be a handful! Good luck