I went thru that with Tal in February. He cried also especially when I put him in his crate at bedtime. I was afraid he would get up during the night and stumble and hurt himself. Well, I let him out, he crawled up into the bed with me and dozed right off. I think all they want is reassurance from us that it's ok...I think it scares them because they don't know why they feel the way they do.
The vet didn't give me any pain meds for Tal...never needed any. I think like people they all respond differently..hope he is doing well this evening!