We had thought out 12 year old shetland had laminitis, but blood tests showed that he has diabetes. He's been on Metformin and Vitex Equids, plus vit C to help absorbtion. He is out in a bald paddock during the day, but has access to hay and is stabled at night, again with just hay. His medication is given twice a day with a little chaff feed - no grain. During the summer he seems to do well but in winter and the moment temperatures are sub-zero, his condition worsens and he becomes very stiff and I wondered if there was a link and he would benefit from being kept warmer and off frozen ground.