| when you are in ketosis it takes a lot more insulin.
i had an episode like that once but it was not as bad as yours. mine was only hitting in the 200s. it would go up and then i would take some insulin in 2 hours it would be okay and then 2 hours later it would be back in the 200s. i changed sites but that didn't help then i changed insulin and that worked. i started a new vial. the other vial i had was new also but it must have been bad. when my sugar level is over 300 i start with a little more than usual and i checked every 2 hours until it gets in the normal range.
i am just getting to know how much insulin to take while i am working. if my sugar level is at 200 i would take about 2 units but when i am working i take a .2. just that little amount will get it back in normal range. i check it often when i am working to make sure it does not go too low. | 
