I'm taking my gelding to the vet tomorrow, and he doesn't have a travel buddy available (his usual travel friend is grazing elsewhere atm). He's traveled solo before, didn't like it, but coped more or less ok. I'm wondering if there's something I could give him to help with anxiety that won't show up on test results. He's had a sudden onset aggression problem crop up recently that we're trying to figure out so there might be blood tests etc, and he needs to be "with it" enough in order to communicate what bothers him in terms of palpation and such. Would love to hear your thoughts and suggestions.