No fill
I've never heard of a band that has stretched, they will slip and then take all the fill out with the hope it will fix the slip but most times it will just happen again. How long did the doc say he was leaving it empty, usually it is only for a month at most, then they start slowly refilling it. If it slips again after this then it is most likely best to get it removed and have a revision to a different surgery. The band is the least effective of all the weight loss surgeries and is close to a 60% failure rate. Now until you start refilling your band you have to diet and all the pother things your are supposed to do when you have a band, eat protein first. then non starchy veggies, then IF still hungry a healthy carb. That's how we are supposed to eat with or without a band. That shgould keep you from gaining while empty.
No I never had a slip but I know many who have and that is pretty much standard procedure to supposedly fix a slip but you will always be more likely to slip again in future. Once you slip you will most likely slip again sometime in the future so just be aware of what this felt like so you can catch it early if it does slip again.