Hi, I have a Y

orkie who is 1 year old. I called his vet because he is limping from the left side. He told that if he does not scream when I touch his leg or cry when he walks that it must be a sprain leg. He gave me an appointment for tomorrow morning. I'm suffering because it kills me to see my adorable Achilles this way. If someone already when through something like this please advise me.
Thank you