Why does my baby stiffen up and cry?

If a baby is flexing their back up when they cry it usually means they are feeling more than just the normal baby pains. The other reason infant back arching (with or without crying) can be cause for concern is that arching the back is also an early symptom of spastic cerebral palsy.

What does it mean when a baby pulls their legs up?

Most of the time, your baby really is trying to pass gas by changing positions and pulling up his legs. However, it’s possible that your baby could be suffering from a medical condition known as intussusception, which occurs when part of the small intestine pulls up into itself in the same manner as a telescope.

Why does baby wake up as soon as I put her down?

“Babies usually wake up when they are laid down because of a change of environment,” she said. “They go from being snuggled in a parent’s arms to a cool mattress or surface.” This keeps your baby’s startle reflex in check so they can relax even during times of change.