From Sleeve to DS?? Anyone had this done?

I paid cash for the first surgery because we had different insurance at that time.  We are waiting to find out if insurance will cover this one.  They checked with my insurance ahead of time and they do cover bariatric and more then one, so we are crossing our fingers.

My doc told me that the DS is not that bad for me at this point because i've already had half of it, which is the sleeve. We are really praying we can take this step! 

when i first when to my doc i was considering the bypass as i had never heard of the sleeve he advised the sleeve due to my high weight risk factor.  he said if i didn't lose it all i could always go in with a revision but didn't really specify at that point.  now it's 1.5 yrs out i have lost 90 but still have at least 150 to go its very difficult i haven't gained but am very stuck though i go to the gym daily and eat 1500-1700 calories i've tried going under and it seems to stall me even more.  so now i am thinking about the ds though i don't know much about it and what the differences between ds and the sleeve are how i will have to alter my eating etc. so i will have to research.