Tell me about it. Do you have an IR horse? What do you feed (type and quantity of forage and concentrate)? What conditions in the horse kept in (dirt lot, grazing muzzle, limited turnout, etc)?
My vet suspects my easy keeper stock horse is IR. Effective tomorrow, we are starting her on Thyro L, switching her a limited amount of low starch feed and moving her from the green grass pasture 23/7 to a much less green paddock 12/7 with the remaining 12 hours in either her stall or in our arena.
Mainly her "symptoms" are just fatty deposits/swelling in her crest. Here is a picture of her crest -- took it yesterday.

My vet suspects my easy keeper stock horse is IR. Effective tomorrow, we are starting her on Thyro L, switching her a limited amount of low starch feed and moving her from the green grass pasture 23/7 to a much less green paddock 12/7 with the remaining 12 hours in either her stall or in our arena.
Mainly her "symptoms" are just fatty deposits/swelling in her crest. Here is a picture of her crest -- took it yesterday.

