Yes, it is normal that eye pressure is higher in the morning than evening. The eye pressure is not constant and varies throughout the day like other body physiology index, such as temperature, heartbeat, blood pressure. As long as the eye pressure is in the normal scope that the optic nerve can accept, between 10 to 21 mmHg, then it is fine. As for your situation, it can be explained in this way, when you sleep in the evening, the blood circulation is slower, so the circulation of the aqueous humor becomes slower, which causes the higher eye pressure. It will not last long after you do some exercises.