My goat owning friends say to check his temp and FAMACHA, try the electrolytes (it's sweet, so it encourages drinking), and maybe give vitamin b complex. They suggest doing it subq. They suggest around 6 cc’s per 100 lbs of body weight.
And maybe have a fecal done (this is my suggestion - just in case).
And maybe have a fecal done (this is my suggestion - just in case).