How do you know you are in ketosis?
GH suppresses insulin, so I don't think that it would be the issue.
I could be mistaken, I am on minimal sleep right now so my brain isn't working as well as it could be.
well GH doesnt exactly suppress insulin, but it does have anti insulin activity. Insulin when bound to receptors allows translocation of the glut-4 transporter from the cytoplasm into the membrane and thus facillitates glucose uptake into the cell.
GH blocks the translocation of the glut-4 transporter into the membrane, and does not allow for glucose uptake in to the cell. This causes hyperglycemia and when used for long periods of time at excessive dosages is a primary stimulus for diabetes mellitus. The pancreas realizes that insulin is not having any effect, and will eventually stop producing insulin.