V.C.
My daughter started to do the same thing around that age and its still going on and she be 16 months this month. I talked to her doctor about it and he said its nothing to worry about. As long as she is gaining some wieght. At her 12 month well child visit she wieghed in at 22 pounds (60%) (i remember because we bought her a new car seat and that was the min. wieght) yet her hieght was in the 95%. Anyway they are still growing but its at a slower rate now so they do not need that many calories. Plus many times they are to busy to eat. When they are hungry they will eat. I know its fustrating and nerve raking but remember you are not alone. As far as sleeping at night. My daughter went from going to sleep at 6:30 to if I am lucky she go to sleep at 7:45 over night no lie. I had to put a sheet up to her window to block out the light. Yeah she still cries but not long. (again if i am lucky) best luck.