Earlier tonight, Xavier started screaming/crying in his crib, about 40 minutes after he went to bed. I'm not sure how long he'd been asleep for, since he wasn't making any noise, but when we went in, he was just lying there screaming and screaming. We tried shushing and patting his back and finally I picked him up and walked around a bit while he kept screaming. It was like regular crying, it was total screaming! He was awake and settled down after a few more minutes of this and after a few more short crying bouts (~20-30 seconds each time), he fell asleep again.
So...was he having a nightmare or night terror? He's almost 16 months old. I realize there could be other factors too, like getting sick or teething, but he's just getting over a cold and has slept fine for the last few nights. I gave him some Camilia, thinking it was teething. Nightmare was the only other thing I could think of.