Hi I’m really looking for some support with my 2 year old GSD, he tore a muscle in his back leg 8 months ago and seemed to be healing well but reinjured it 3 weeks ago, we went vets, course anti inflammatories and seemed be healing but few days ago he seemed to hurt it again and then today he ran outside, yelped and came limping back to me we are short lead walking him and trying everything to keep him calm but he is an active, excitable pup. I am beside myself with worry, any tips or hints how I can help him?