Holy Cow!! That sounds exactly like what my baby is doing!! He is four months old and has SWCAH. He slept very soundly for the first few months, but for the last 4-6 weeks, he tosses and turns, sometimes all night long, sometimes just for a few hours. He doesn’t cry, but will "grunt" and toss his head back and forth, and arch his back and kick his legs. He also seems to spit up more during these times. During the day, he seems in no obvious discomfort. I’m really not sure why this is only happening at night. He was at the pediatricians office today for his 4 month checkup and he gave me a prescription for Zantac and said the problem could be acid reflux. A few nights ago he kept me up almost ALL night doing this. I sure hope that the Zantac will give him ( and me ), some relief :) Has your little girl done this for her whole life, or did she start just recently? Hope things get better.