I have a 3 month old lamb who is feeling a bit sorry for himself, his head and ears are down and he isn't eating any hard feed. He is grazing however and still wandering around with the flock. He has been thoroughly checked over and no strike can be seen, it looks like his droppings are loose however.
Before I go down the vet route, is there anything obvious I can give him? He is fully vaccinated with Heptivac, wormed about a month ago and still on mum. All other lambs and ewes are fine.