 [ Symptoms ] can drinking orange juice at night cause upset stomach in the morning  my child has been waking with an upset stomach in the morning that lasts a few hours she is been drinking natural orange juice with pulp at night not sure if there is a connection sometimes when i drink the oj late at night my stomach is a little crazy in the morning [ Disease ] try a few nights without the orange juice and then try it again if you do find a connection then just do not give oj at night for most people this would not be an issue but it may be for you and your child