I've read that constant high cortizon level triggers diabetes in some individuals. it doesn't matter if it's your own or injected, it does reflect BG. this is why BG rise when we are stressed, since cortizon is stress hormone. it's our body natural "fight or fly" response to stress. heavy weight lifting exercise and other streneous physical activities raise BG for the same reasons, it's cortizone spike. weight lifting always does it to my BG.
regards,
dina