Why would a guy says he felt funny when I asked if he was okay?

Today, my colleague has soccer match with his team and during the game, he was injured and was taken to hospital. I actually like him and out of concern, I asked if he was okay and he gave me laughing emoji. When I asked him why he was reacting with laughing emoji, he replied saying he felt funny. I scolded him saying that he is feeling funny when he is in so much pain. And again he gave me laughing emoji while saying what happened to him. Why did he feel funny when I asked if he was okay?

Why would a guy says he felt funny when I asked if he was okay?
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