"Toing Toing" Leg

Gabriel woke up yesterday and was crying for me to come and get him. He usually comes downstairs himself when he wakes up. For some reason he is limping and refusing to walk on his right foot. He tells me that it hurts and that it is "Toing Toing". I checked the foot and leg out and no cuts, bruises, swelling, redness or other signs of injury. Not sure what is wrong. He can get around and sometimes even jumps and dances in short bursts. He looks kind of funny like he is chafed again, but he isn't. He is saying "cheese" since he thinks I am taking a photo of him. He is so cute...even when he is injured.