If it is cocci s/he will have runny, yellowy poo, it could literally streaming out of him. If he is not having the runs it is more likely bloat....does his stomach feel round and hard? If yes I would be tempted to drench with a bit of bicarb/water, don't have a recipe here though saying how much for a kid this young...
Keep her/him on hay and water until better - is s/he on milk replacer or proper goatsmilk? If on lamlac or similar, always make up a bit more diluted than it says on the tin...