When you saw the way his ankle was broken, you got sick to your stomach.
sick to (one's) stomach
Nauseated or vomiting. I started feeling sick to my stomach on the way home because Kelly was driving at top speed on the twisting road.I heard you were sick to your stomach after dinner last night—how are you feeling this morning?
sick to your stomach
1 feeling nauseous. 2 disgusted.
sick to your ˈstomach
disgusted or angry: I feel sick to my stomach every time I think about the way that child was punished.