Squeals of Delight?

I continue to be amazed at how quickly babies (i.e. Olivia) progress. She is becoming quite active for a supposedly immobile little being. She often has this look in her eye that says, "I am ready to be on the move. You just watch out when it happens." Right now she has two ways of moving around. One is to roll over, sometimes a couple of times to cover some ground. The other recently started. When she is lying on her back she uses her legs to push herself backward across the floor. Yale calls her a spawning salmon. Needless to say this doesn't seem to be helping the bald spot on the back of her head. Olivia has also taken an interest in experimenting with her voice. Usually she makes cute little sighing or whimpering noises, but sometimes she will make this high-pitched squealing noise that if done hour after hour can make a person feel a little crazy. The worst is when she has been screeching all day and no matter how much I love her, I am about to lose my mind and then Yale comes home from work and says, "Oh, isn't that cute how she makes that little squealing noise." Olivia has taken to solid food enthusiastically. Her favorites seem to be winter squash and applesauce. Next week we are going to try some oatmeal. She still isn't sleeping through the night consistently. She will make it through the night maybe once a week. I am hoping oatmeal with really fill her up and help her make it through the night more often.