Why does my 2 months old baby keep on waking up screaming?

today my 2 months old baby keeps waking up screaming, she is a bit colicky but only at night. normally she's a champ during the day, she feeds, sleeps, plays, but today she hasnt slept properly, she took 15 mns naps and she wakes up screaming. Could it be she's dreaming?|||hiya, it sounds like she may be in slight discomfort somewhere, if she has colic it is possibly that, try giving her cooled boiled water between feeds to see if that helps. xx|||She may just be in pain. Call her doctor.