separation anxiety herd bound

Has anyone ever had a horse who does not enjoy being a small yard? I’ve moved my two horses home. They were previously on a livery yard. One seems to have settled albeit they are quite clingy to each other, though I think this has been made worse by the other one. My second is extremely stressy...

Since moving to a new yard and having herd turnout for the first time, my 8 year old gelding has developed separation anxiety. He happily leaves the herd and walks calmly to his stable. However, within a few seconds he starts pacing round the stable, calling, occasionally bucking etc. He’s fine...