My mare had her first normal insulin test (26). She is in regular exercise, a good weight, diet working, but her crest is still there. She's had it most of her life. Is there more I should do/can do? 
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Shera Felde, Central Oregon, 2020
https://ecir.groups.io/g/CaseHistory/files/Story%20and%20Shera
https://ecir.groups.io/g/CaseHistory/album?id=253720