Based on the symptoms described, Julian likely experienced a rib injury, such as a rib fracture or bruising, due to the fall on ice. The pain he experiences when breathing can be attributed to the movement of the ribs during respiration. When Julian takes a breath, the expansion and contraction of the chest cavity cause the ribs to move. In the case of a rib injury, this movement can lead to pain and discomfort. The pain may be exacerbated when breathing deeply or when there is direct pressure on the injured area. It is important for Julian to receive medical evaluation and potentially imaging, such as an X-ray, to confirm the presence of a rib injury and determine the appropriate course of treatment
I hope this helps!!